Top 11 Best Water Purifiers in India (March 2020)- Price, Reviews & Buyer’s Guide

Nowadays, water purifiers for home are no longer a luxury. The water contamination level has increased. The studies state that around 70% of surface water in India is unfit for consumption. Hence, the demand for the best water purifiers has increased. Buyers are looking for a water purifier that can effectively filter the toxic water & turn it into safe drinking water. Therefore, we have prepared the list of 11 best water purifiers in India that you can buy right away.

As India develops and urbanizes, its water bodies are getting toxic. Hence, water purifiers have become a basic need of Indian households. But, buying the best water purifier can be a tricky job. Various factors are to be considered before actually buying water purifiers, for example, the water contamination level, type of water purifier suitable for your region, etc.

Many buyers do not know or don’t have the required information about technology to make the right decision. Therefore, we have done all the homework for you and prepared the list of best water purifiers in India with features. Also, we highly recommend you to read our buyer’s guide to gain extra knowledge to make the right purchase.

Firstly, in this article, you will find the list of best water purifiers that you can buy right now. After that, we have written an in-depth review of each water purifier. Finally, you will find the buyer’s guide that will help you to purchase the right water purifier for your home.


Top 11 Best Water Purifiers Price List

Below is the list of best water purifiers for your home. The price of online products keeps on fluctuating depending upon the seller. Therefore, you can check the latest price on Amazon by clicking the link in the price section.

Water PurifierProduct Ratings

(based on our research on the product)
Price
Eureka Forbes Aquasure from Aquaguard Delight 7-litresPerformance
4.5/5
Durability

4/5
Value For Money

4.5/5
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Eureka Forbes Aquaguard Crystal Plus UV Water Purifier, White Performance
4.5/5
Durability

4/5
Value For Money

4.5/5
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Faber Galaxy Plus RO+UV+UF+MAT, 9 Liters, 8 Stage Mineral Water Purifier Performance
4.5/5
Durability
4/5
Value For Money

4/5
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LG WW182EP RO+STS+UV+UF (Mineral Booster) RO Multi-Stage Filtration with 8 LTRPerformance
4.5/5
Durability
4.5/5
Value For Money

4.5/5
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LG Puricare WW150NP RO + UV Water Purifier RO Multi-Stage Filtration with 8 LitrePerformance
4.5/5
Durability

4.5/5
Value For Money

4.5/5
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Blue Star Aristo RO+UV+UF AR5BLAM01 7-Litre Water PurifierPerformance
4.3/5
Durability

4/5
Value For Money

4.5/5
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Faber Galaxy RO+UF+MAT, 9 Liters, 7 Stage Mineral Water PurifierPerformance
4.5/5
Durability
4.5/5
Value For Money

4.5/5
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Kent ultra storage 7 litre, UV and UF water purifierPerformance
4/5
Durability

4/5
Value For Money

4.5/5
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Havells Max 7-litres RO UV Water PurifierPerformance
4.5
Durability

4.5/5
Value For Money

4.5/5
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P-LINK® Blue Edition RO+UV+TDS+B12 Alkaline Water Purifier Performance
3.5/5
Durability

3.5/5
Value For Money

4.5/5
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Eureka Forbes Aquasure from Aquaguard Amrit 20-Litre Water PurifierPerformance
3.5/5
Durability

3.5/5
Value For Money

4/5
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Best Water Purifier in India 2020

1. Eureka Forbes Aquasure from Aquaguard Delight 7-litres

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Eureka Forbes is a famous water purifier brand in India. This product received many positive feedbacks. It comes with a 7-liters tank capacity and multi-stage purification technology with MTDS. Most importantly, it can treat water that has a TDS level of up to 2000 ppm.

Best water purifier

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Key Features:

  • RO+UV+MTDS
  • 7 Liters Store Tank Capacity
  • Long-Lasting Cartridge
  • Energy Saving Mode
  • Safe and Pure Water
  • Dimensions: WxHxD(mm): 300 x 430 x 238

Description

This water purifier not only looks stylish but also comes with best-in-class technology. The Multi-Stage Purification Technology (RO + UV + MTDS) gives you very safe and tasty drinking water.

Also, it has a huge water tank of 7 liters so that you don’t run out of water. The 7-liter tank capacity is enough for a medium-sized family.

Furthermore, the life of the cartridge of this water purifier is about 6000 Liter. Therefore, buyers have safe water to drink for a longer duration. It reduces operational costs.

water purifier in India

This water purifier also comes with an energy-saving mode. Hence, the water supply automatically switches off the power supply when the water tank of the purifier is full. So, this will reduce the electricity cost for buyers.

This Eureka Forbes water purifier can treat water that has a TDS level of up to 2000 ppm. Hence, it reduces the TDS level down to about 90% for the reason that buyers get water that is safe and healthy.

Also, as it has a TDS regulator, buyers can manually adjust the TDS level of water. So, they can adjust the taste of the water according to their likings.

Most importantly, it comes with Smart LED indicators that show purification, tank full and power-on status.

Pros

  • Multi-Stage Purification
  • Huge Storage Tank
  • TDS regulator
  • Energy-Saving mode
  • Value for money
  • Stylish Design

Cons

  • For every liter of water purified, 650 ml of water is thrown out by the machine so we advise you to reuse that water for other purposes.

This water purifier is one of the best products of Eureka Forbes. Besides, it has received good feedbacks online. Buyers state the performance of this water purifier is good. You should buy this product if the water in your area needs multi-stage filtration. Also, the cost is reasonable.

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2. LG WW182EP RO+STS+UV+UF (Mineral Booster) RO Multi-Stage Filtration with 8 Liters

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LG water purifiers stand apart from every other competitor in the market. They provide the most-advanced and classy water purifiers in the Indian market. LG water purifiers are equipped with high-class technology to provide safe drinking water. Hence, they are a bit expensive than the other brands but for obvious reasons.

best water purifier

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Key Features:

  • RO+STS+UV+UF
  • 8 Liters Store Tank Capacity
  • 5 Stage RO Filtration System
  • Mineral Booster
  • Stainless Steel Tank
  • EverFresh UV Plus
  • Dimensions: WxHxD(mm): 365x500x295

Description

It’s a premium product from LG that is very effective at providing safe drinking water. Its 5 stage RO filtration system removes impurity or pollutants as small as 0.0001 micrometers in size, hence, providing safe drinking water.

Most noteworthy, it successfully eradicates bacteria, viruses, and heavy metals to provide safe drinking water.

This water purifier is equipped with Mineral Booster which adds on minerals to the water. As a result, water is more tasty and healthy. Also, it has a large water tank with a capacity of 8 liters. Therefore, you will not run out of healthy and tasty water easily.

lg water purifier

Moreover, it has a stainless steel tank. Hence, the water tank is very durable. The stainless steel water tank has 10 years warranty from LG.

Furthermore, it also has Ever Fresh UV Plus technology. UV Cycle automatically starts every 6 Hours during the Preservation stage.

Another amazing feature of this water purifier is its Digital Sterilizing Care technology. It is the most hygienic method to clean the entire water path, Faucet, and tank with a unique sterilizing Kit that does not use any harmful chemicals.

Pros

  • 5 Stage RO Filtration
  • Healthy & tasty water with Mineral Booster
  • Good build quality with Stainless Steel Water Tank
  • Smart Display
  • Water tank fills up fast

Cons

  • Lack of TDS controller

This product is for buyers who are looking for a higher performance product & budget is not a big issue for them. It has high-class technology to make sure you get safe, healthy & tasty drinking water. Therefore, the product is a bit expensive but for logical reasons. It has received good feedbacks online so you can go for this product.

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3. Faber Galaxy Plus RO+UV+UF+MAT, 9 Liters

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This water purifier from Faber has received good feedbacks online. It has best-in-class features. Also, the cost of this product is very reasonable.

best purifier in India

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Key Features:

  • RO+UV+UF+MAT
  • 9-liters storage tank capacity
  • 8 Stage Purification
  • Mineral Addition Technology
  • Copper guard technology 
  • Dimensions: WxHxD(mm): 360 x 460 x 210

Description

This water purifier can treat water that has a TDS level of up to 2500, which ensures purification even under extreme conditions. Besides, it has a huge water tank with a capacity of 9 liters.

This purifier is capable of filtering water from the municipal supply, borewell, tank water, etc. It has an 8 stage purification process. Also, RO + UV + UF + MAT reduces physical, chemical & biological contamination.

As a result, you get safe & pure drinking water. In addition to this, it has Mineral Addition Technology. So, it restores vital minerals lost during the filtration process. It also has a classic design with a black glossy finish and stylish Tap Lever.

Furthermore, it’s Copper guard technology acts as an anti-fouling agent & improves the taste of water.

Pros

  • 8 Stage Purification
  • Mineral Addition Technology
  • Huge water storage tank
  • Elegant Design
  • Reasonable price

Cons

  • Buyers complained about after sale service

This water purifier comes with advance features at a reasonable price. Other users have stated that build quality & performance is good but after-sale service requires patience. However, the product has still managed to gain pretty good feedbacks online. So, if you are looking for hi-tech features at a reasonable price, this product is for you.

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4. LG Puricare WW150NP RO + UV Water Purifier, 8-Liters

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This LG water purifier is the smaller model of LG WW182EP. It’s a RO+ UV water purifier with a 5 stage filtration system. However, LG WW182EP also has STS & UF technology. Therefore, this model is less expensive than LG’s WW182EP. And, the other features are almost the same. Let’s look at some of the main features of this product.

LG water purifier

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Key Features:

  • RO + UV
  • 5-stage filtration system
  • 8-Liter storage tank capacity
  • Stainless Steel Tank
  • Ever fresh UV Plus
  • Dimensions: WxDxH (mm):

Description:

This purifier has high-class innovative technology from LG. Hence, it is very efficient at removing impurities from water through RO+UV. This product has received many 5-star reviews from buyers online.

It also has a 5-stage filtration system. Therefore, it is very successful in eradicating bacteria, viruses, and heavy metals to provide amazingly pure drinking water.

water purifier form LG

Furthermore, it has a high water storage capacity of 8-Liters. Most importantly, the water storage tank is made of stainless steel. Hence, it makes the tank very durable. A stainless steel tank is far more hygienic than a plastic tank.

Besides, LG provides a 10-year warranty on its stainless steel tank.

Moreover, with Ever Fresh UV Plus technology, the UV cycle starts automatically every 6 hours. In addition, it also has digital sterilization technology that purifies the entire water path, faucet, and tank with a unique sterilizing kit that does not use any dangerous chemicals.

Pros

  • RO + UV
  • 5-stage filtration system
  • Stainless Steel Tank
  • Good water storage capacity of 8 liters
  • LG Water Purifiers have been certified by the Heart Care Foundation of India for providing safe drinking water.

Cons

  • Lack of mineral booster

It is a high-quality water purifier that is quite good at removing impurities. So, if you are sure enough that RO+UV technology is enough to clean the water in your area, you can go for this product. However, you will need a good budget as LG’s innovative & unique technology comes at a price.

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5. Blue Star Aristo (RO+UV+UF) AR5BLAM01, 7-Liters

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The Blue Star is preferred by many Indians as it provides home appliances at affordable costs. Also, it has a wide range of water purifiers too. The Blue Star Aristo is the best-selling product among its wide range of water purifiers.

Blue Star Aristo

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Key Features:

  • RO+UV+UF
  • 7-Liters water tank capacity
  • 7-Stage purification process
  • Aqua Taste Booster
  • 10 Inch Filter
  • Low-Pressure Alert
  • Child Lock Function
  • Dimensions: WxDxH(mm): 342 x 205 x 450

Description

Blue Star is a well-known brand among Indian households. This water purifier is useful if TDS is more than 200 in your area. However, it is not approved if the TDS level is more than 2000 in your region.

The water goes through a 7-stage purification process in this water purifier. Besides, it has a 10-inch filter to ensure that water is filtered accurately.

It has a water storage capacity of 7-liters. It is good enough. However, If you are looking for a larger water tank capacity, you can buy Faber or LG water purifiers.

Moreover, this model looks elegant and comes at an affordable price. Also, the water purifier has Copper Impregnated Activated Carbon technology. As a result, there is no smell or odor from water.

The taste of water is improved by maintaining the optimum pH level. This is done with the help of Aqua Taste Booster technology. Hence, you get tasty & healthy drinking water.

Furthermore, it also has a Child lock feature. Therefore, you don’t have to worry even if your kids fool around with the buttons or controls. In addition to that, this water purifier will indicate or alert you in the following situations:

  • UV Fail Alert
  • Low-Pressure Alert
  • Purification-on Indicator
  • Tank-full Indicator

Pros

  • RO+UV+UF 
  • 7-Stage purification process
  • Enhanced taste & optimum pH level
  • Child-Lock
  • Value for money

Cons

  • Average Build quality

This water purifier is suitable if the TDS level in your area is below 2000. Buyers have stated that the performance is good enough. Hence, we recommend this product if you have an average budget, need basic features & want to buy the purifier of a familiar brand.

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6. Faber Galaxy RO+UF+MAT, 9 Liters

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This Faber Galaxy model has RO+UF+MAT with a 7-stage purification system. It reduces physical, chemical & biological contamination. Also, the Faber Galaxy Plus model that we reviewed at number 3 in this article is the enhanced version of this water purifier.

RO+UF purifier

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Key Features:

  • RO+UF+MAT
  • 9-Liters Water Tank Capacity
  • 7-Stage Purification Process
  • Mineral Addition Technology
  • Copper Guard Technology
  • Dimensions: WxDxH (mm): 360 x 210 x 460

Description

This water purifier can treat & clean water up to 2500 TDS level. Hence, it ensures purification even under intense conditions. Faber water purifiers are built to purify water from any source. Therefore, they receive good feedbacks from customers.

Most importantly, this product is available at a very reasonable price on Amazon. So, the budget won’t be any problem for you if you are planning to purchase this product.

It has a big 9-Liter water storage tank. Hence, you will not run out of safe drinking water.

In addition to this, it has Mineral Addition Technology. During the purification of water, minerals are lost in the process. Therefore, this technology restores natural minerals lost during filtration.

Furthermore, the Copper Guard Technology remove foul smell & improves the taste of water.

Pros

  • RO + UF + MAT
  • 7-Stage Purification
  • High water storage capacity of 9-Liters
  • Restores natural minerals
  • Reasonable Price

Cons

  • It may be a bit noisy

You should buy this water purifier if you are looking for RO + UF + MAT combination. It is simply the best-rated purifier in this price segment. Also, buyers have stated the performance is up to the mark.

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7. Havells Max 7-litres RO+UV Water Purifier 

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This purifier was given the status of the Best-voted product of the year by Consumer Survey of Product Innovation. It has a futuristic design & best-in-class purification technology. Also, it has received good feedbacks online.

Havells water purifier

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Key Features:

  • RO + UV
  • 7-Stages Purification Process
  • 7-Liter water tank capacity
  • Minerals Cartridge
  • Revitalizer
  • Electrical Protection System
  • 3 Way Mounting
  • Dimensions: WxDxH (mm): 382 x 273 x 490

Description

Click here to watch this product video from official Havells YouTube Channel

The water is purified through the R0 + UV and 7-stage filtration system. Firstly, the water goes through the RO membrane & then UV purification is done to provide safe drinking water.

It has a water storage capacity of 7-Liters. Also, the design is very classy & futuristic. You can either mount it on the table, fix it on a straight wall or even in the corner.

Furthermore, it has Minerals Cartridge that maintains the pH of purified water & adds back minerals lost in the filtration process. Hence, you get healthy & tasty water always.

Its unique Revitalizer technology restructures the water molecules and makes it biologically active that improves hydration and mineral absorption.

Moreover, it also has an Electrical Protection System that protects the purifier from any electrical damage caused due to fluctuations in voltage. Therefore, it’s very suitable for regions where power fluctuation is a significant issue.

It’s also very easy to clean the water tank as it is removable. Therefore, buyers should clean it from time to time to keep it clean. Besides, it’s Ingress Protection Tank Cover can stop the attack of insects and dirt from outside.

Pros

  • RO & UV
  • 7-Stage filtration system
  • Smart Alerts
  • Compact Design with 3 Way Mounting
  • Minerals Cartridge to add back natural minerals

Cons

  • After-sale service & maintenance may trouble buyers

If you are looking for a water purifier from Havells then this is the right choice for you. It’s one of the most purchased water-purifier of Havells online. Also, if your region experiences voltage fluctuations then we would advise you to buy this purifier as it has Electrical Protection System. However, we also recommend you to find out how’s the after-sale service of Havells in your city before purchasing this item.

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8. Eureka Forbes Aquaguard Crystal Plus UV Water Purifier

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This water purifier is suitable for less polluted water. It is for the water that is not salty and the TDS level should not be more than 200. Therefore, it’s for the buyers who are looking for a very basic water purifier.

eureka forbes UV purifier

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Key Features:

  • UV purifier
  • 3 Stages of UV Technology
  • Intelligent Purity Sensor (IPS)
  • Auto Shut-off
  • Mineral Guard
  • Voltage Stabilizer
  • Dimensions: WxDxH (mm): 380 x 490 x 300

Description:

This water purifier is suitable for less polluted water. It is for the water that is not salty and the TDS level should not be more than 200. Therefore, it’s for the buyers who are looking for a very basic water purifier.

The water has a unique E-boiling technique that kills bacteria and viruses to ensure you have clean and safe drinking water.

Most importantly, the water goes through the 3 stages of water purifying UV technology.

In the first stage, dust, rust, and mud up to 5 microns are eliminated from the water. In the second stage, it absorbs organic impurities, foul smell, lead, pesticides, and VOCs from the water. Finally, UV rays deactivate bacteria, viruses & other disease-causing micro-organisms to provide safe drinking water.

best UV water purifier

Furthermore, it has a purity sensor that controls the purification process and stops the flow of water immediately if the level of purification isn’t 100 percent.

Also, the UV lamp is automatically switched off when it is not used for 10 minutes. Hence, it helps in saving electricity. The Mineral Guard prevents the removal of natural minerals like Calcium and Magnesium.

It has an in-built Voltage Stabilizer which ensures that the purifier works flawlessly even during voltage variations.

Pros

  • UV purifier
  • 3 Stages of UV Technology
  • Auto-shutoff
  • Mineral Guard
  • Value for money

Cons

  • Do not clean highly polluted water. It is effective only for water with a TDS level below 200

It is effective in areas where water is less polluted. If you are looking for a basic water purifier that makes water as safe and pure as the water that’s boiled for over 20 minutes, it is for you. So, you can buy this product if the water in your region does not need high-level filtration.

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9. Kent ultra storage UV and UF water purifier, 7 liters

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Kent ultra stage purifier provides double stage purification. Firstly, water is passed through UV filtration. After that, it passes through a hollow fiber UF membrane to completely filter out dead bacteria, viruses, and cysts. However, it doesn’t have RO purification, so it is not recommended for water with a high TDS level.

kent UV+UF purifier

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Key Features:

  • UV & UF
  • 7-liters water storage capacity
  • Voltage fluctuation protection
  • Dimensions: WxDxH (mm): 350 x 320 x 320

Description

This purifier is suitable for cleaning the water that has a TDS level below 200. Therefore, we do not recommend you to use this purifier if the water in your region has high contamination levels. However, it can efficiently clean less polluted water.

This purifier comes with basic functions and technologies, hence, it is available at an affordable cost. Kent has won the trust of Indian customers by providing fine quality products at reasonable costs.

Also, it has a Filter fail alarm & UV fail alarm. The filter change alarm is time-based & hence notifies the user periodically to change filters. However, the UV fail alarm alerts the user when the UV lamp becomes unfit.

But, most importantly, in both the cases, power supply to the purifier is cut off, thereby ensuring that unpurified water is not delivered to the user.

Moreover, this product has a built-in Switching Mode Power Supply instead of a standard power adapter, so buyers don’t have to worry about voltage fluctuations.

Pros

  • UV + UF
  • Effective purification of water below 200 TDS level
  • Protection from voltage fluctuations
  • Reasonable cost

Cons

  • Average build quality as some users complained about leakage issues.

You should buy this water purifier only if the water in your area is soft rather than hard. Also, buyers should research how is Kent’s after-sales service support in there area or city before buying the product. Hence, you will be more satisfied with your purchase if the service is good.

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10. P-LINK® Blue Edition RO+UV+TDS+B12 Alkaline Water Purifier

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P-LINK® Blue Edition water-purifier is a low budget water purifier available in India that has received good feedback. As it is budget-friendly, it is preferred by many buyers. Therefore, its among best-selling water purifiers online. Surprisingly, it is very low-priced considering its features.

RO+UV+TDS purifier

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Key Features:

  • RO+UV
  • TDS controller
  • 12-Liters of water storage capacity
  • B12 Cartridge
  • Stainless steel Uv Tube

Description

It is a conventional RO water purifier with 5-stages of the water purification process. The process is as follows:

  • Sediment filter
  • Carbon filter
  • RO membrane 
  • Stainless steel UV chamber with Phillips UV tube
  • Alkaline cartridge adds minerals 

The micron rating of the Sediment filter is 5. Hence, it is effective at eliminating dirt, rust and sand particles. After that, the Carbon filter eliminates 99% of chlorine and organic chemicals. As a result, water is more healthy and free from odor.

The RO membrane removes hard water contaminants like Lead, Copper, Barium, Chromium, Mercury, Sodium, etc. After that, the UV light will sterilize filter water at a normal flow rate. As a result, the undesired organisms will be wiped out & their power to survive and reproduce will decline.

Finally, B12 Cartridge adds back essential natural minerals lost during the purification process.

Pros

  • RO+UV
  • TDS controller
  • Huge water tank storage of 12-Liters.
  • Value For Money

Cons

  • Average build-quality

If you have a low budget & want to buy an RO+UV water purifier, then this product is for you. Also, users have not reported any major issues with the product. Hence, you can buy this conventional RO purifier available at a reasonable cost.

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11. Eureka Forbes Aquasure from Aquaguard Amrit Water Purifier, 20-Liters

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It is a gravity-based water purifier by Eureka Forbes. It is a best-selling product in this category of water purifiers. Buyers have to keep in mind that this water purifier is for purification of soft water & is not recommended for highly contaminated water.

gravity-based purifier

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Key Features:

  • Gravity-based
  • Huge Capacity of 20-Liters
  • 100% Chemical-free
  • Natural Shut-off
  • Long Cartridge Life – 1500 Litres

Description:

This water purifier is effective at removing bacteria, viruses, cyst, and other microbial contaminants from low TDS water or soft water. Hence, this gravity-based purifier provides chemical-free water.

Moreover, the purifier has a huge capacity of 20-Liters. So, you will not run out of safe drinking water easily. This product does not require installation.

This purifier should only be used for Corporation/ Municipal water supply that has a low TDS level.

The cartridge life can handle up to 1500 liters of contaminated water. After that, buyers need to change it. Furthermore, when the cartridge life is over, the water supply will automatically cut-off to ensure that users don’t receive contaminated water.

Also, it is made from food-grade, non-toxic plastic.

Pros

  • Gravity-based, no electricity required
  • Chemical-free water
  • The huge capacity of 20-Liters
  • Long cartridge life of 1500-Liters
  • Food-Grade plastic

Cons

  • Not effective for highly contaminated water
  • Average build-quality

This water purifier is for people who are looking for a water purifier that does not require electricity & can filter soft water from the municipal water supply. It is available at a very low price. However, the build quality is average.

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How to choose a water purifier? (Buying Guide)

We know that choosing the best water purifier is not an easy job particularly when you are buying it for the first time. Therefore, we decided to write in detail about how to choose a water purifier for your home.

Firstly, we will list the factors that you should consider before buying a water purifier. After that, we will explain about the impurities in water and accepted TDS level.

Secondly, we will explain in detail how the latest water purifier technologies treat impure water.

Finally, we will help you decide the best water purifier for your home based on your requirements. Also, we will tell you about 5 things that you should keep in mind before buying a water purifier.


Factors To Consider Before Buying A Water Purifier

Buyers should consider the following things before buying a water purifier:

  • Source of water supply in your region
  • Types of impurities in water or TDS level of water
  • Water purifier technologies that can effectively purify water in your area.
  • RO, UV & UF, which is the best choice for you according to the TDS level.
  • What is your maximum budget for buying a water purifier? 
  • What type of design & size is perfect for you? 

Now, let us explain the factors with in-depth detail and answer the basic questions so that you don’t get confused about buying a purifier.


What is TDS?

TDS stands for Total Dissolved Solids. It represents the total concentration of dissolved substances in water. And, it is made up of inorganic salts, as well as a small amount of organic matter.

In simple words, TDS is organic and inorganic materials, such as metals, minerals, and ions, dissolved in a particular volume of water. These minerals can come from different sources, both natural or as a result of human activities like agriculture.

It can even come from the plumbing in your house.

High amounts of dissolved solids can adversely affect your health as well as other items. Also, the water that contains a significant quantity of dissolved minerals is known as Hard Water. It can stain household fixtures, corrode pipes, and have a metallic taste.

Most importantly, it can also make you sick. Hence, it is very important to check the TDS level & choose your purifier accordingly.


How To Measure TDS?

TDS meter

TDS Meter is the most effortless way to measure the level of total dissolved solids in water. 

Total dissolved solids (TDS) is measured as a volume of water with the unit milligrams per liter (mg/L).

Hence, one should always have a TDS meter in-home to ensure that you get safe drinking water. You can buy the TDS meters from Amazon at a very low cost. Following TDS meters are best-sellers on Amazon:

According to the EPA secondary drinking water regulations, 500 ppm is the prescribed maximum amount of TDS for your drinking water. 


What are the accepted TDS levels according to the World Health Organization?

According to a study by the World Health Organization, a jury of tasters came to the following conclusions about the preferable level of TDS in water:

tds level in water
Source: WHO

However, a very low concentration of TDS gives water a flat taste, which is not liked by many people.


Water Purifier Technologies

(A). Water Filtration Technologies

Reverse Osmosis or RO is a water purification process that uses a semi-permeable, thin membrane with holes small enough to pass pure water to remove ions, unwanted molecules and larger particles from drinking water. In other words, RO is a technology that uses pressure to pass water through a thin membrane and hence separate impurities from water. RO works by reversing the principle of osmosis. In an RO system, the pressure is used to overcome natural osmotic pressure. The impure water pass-through the highly sophisticated semipermeable membrane which removes a high percentage of impurities. Therefore, you get highly purified water. You can see the picture below of an RO membrane.
Ultra Violet System (UV) is a water purification method used to disinfect bacteria, viruses, molds, and pathogens without the use of the chemical. In other words, this process eliminates the chances of their reproduction and makes the water clean. UV light works by causing permanent damage to the DNA or RNA found in all living species.
Ultrafiltration is one membrane filtration process that serves as a wall to separate harmful bacteria, viruses, and other contaminants from clean water. An ultrafiltration water system forces water through a .02 micron membrane. After that, the dissolved particles that are too big to pass through the membrane stick to the outer surface. It is usually combined with other technology like RO & UV to effectively remove impurities that have managed to pass through RO or UV filtration. Also, UF can be used as pretreatment for reverse osmosis systems or as a final filtration stage for deionized water.
Sediment filters are designed to remove dissolved solids, which are also known as sediment. A sediment filter functions like a net that catches undesired dirt particles as the water flows through the system. On the other hand, carbon filters can remove chlorine, volatile organic compounds (VOCs), odors and unpleasant tastes from the water. Carbon filters contain activated carbon. As the water goes through the carbon filter, a lot of impurities will become stuck to the carbon bonding places. Therefore, the water will be purer as it comes out of the filter.

RO Membrane

RO purification
(Source: evoqua.com)

(B). Other Additional Technologies

A TDS (Total Dissolved Salts) Regulator is a device which helps in controlling the TDS level of the water coming out of the RO. So, it helps in ensuring that the level of total dissolved salts in water remains under specified standards. However, buyers should be alert with the use of TDS. The TDS level in your water supply fluctuates frequently due to various reasons like rains, changing water sources, etc. Therefore, buyers need to keep an eye at the TDS level & adjust TDS accordingly to maintain the balance of minerals in the purified water.
We know that purifying water with the help of RO, UV, UF can lead to a deficiency of minerals in the water. But, nowadays, water purifier manufacturers are providing the latest technology called Mineral addition or Mineral booster that helps in retaining minerals in purified water. Therefore, you get both healthy & tasty water. This technology is commonly found in water purifiers above the range of ₹8000.
Copper impregnated activated carbon technology is used to remove smell, odor and volatile organic compounds from water. Also, it has anti-bacterial properties.
Aqua taste booster (ATB) technology can be seen in Blue Star Aristo water purifier. It uses calcite media which improves the taste and helps maintain the optimum pH level of water. Therefore, you get tasty water with a low TDS level.
Electronic Protection System (EPS), as the name suggests, is a technology that helps in preventing water purifier from any damage due to voltage fluctuations in your area. We know that voltage fluctuations can damage electrical appliances. Hence, it is very helpful in areas where voltage fluctuation is a major issue. So, you don't have to worry about that with such technologies.

The Complete Water Purifying Process

water purifying process
(Source: Kent.com)

What is the major difference between RO, UV & UF?

RO vs UV vs UF Comparison Table

Reverse Osmosis (RO) FiltrationUltraviolet Filteration (UV)Ultrafiltration (UF)
It works by reversing the principle of osmosis.UV water filters utilize the electromagnetic energy of the light.Ultrafiltration (UF) uses normal home water pressure to push water through a membrane and remove any contaminants.
It should be used when the TDS level is above 200UV can be used when the TDS level is below 200.It can be used in combination with RO or UV.
RO blocks and filters out the germs & viruses from impure water.It disinfects germs and bacteria by attacking the DNA with ultraviolet radiation. However, it can only make germs inactive but can’t kill & filter them out.It blocks and filters out the germs & viruses from impure water.
RO requires electricity for filtrationUV requires electricity for filtrationUF does not require electricity to work.
RO vs UV vs Mineral RO
(Source: Kent)

5 things to consider before buying a water purifier

(A). Check the water quality & TDS level of water

Firstly, you should check the TDS level of water supplied to your home. TDS level can vary in houses from the same area because even the plumbing in your house affects the TDS level. Therefore, buy a TDS meter & ensure the TDS level in your home.

(B). Choose your water purifier according to the water quality & TDS level

RO, UV & UF each has its specific way of filtration for different types of impurities. Water purifiers use a blend of technology to remove impurities from water. Hence, you need to test the water quality & then decide the type of water purifier.

(C). Consider the cost of the filter replacement

We know that you are looking for a purifier with high performance & reasonable cost. While calculating the monthly or yearly cost of a water purifier, the majority of buyers forget about the expense of filter that is changed periodically. Therefore, you should always remember to check the cost of a filter that you will have to pay periodically.

(D). Consider the amount of water you or your family drinks

Many buyers often forget to consider the amount of water that they require from day to day purposes. As a result, the water storage capacity of a water purifier might fall short for your family. Therefore, remember to consider the amount of water usage for choosing a water purifier with the right storage capacity.

(E). Research about after-sales service in your city or region

Finally, after deciding the water purifier, you should find out how is the after-sales service of the water purifier company in your region. We have seen & read about many buyers complaining about issues like delayed installment, poor behavior & hidden expenses.


Frequently Asked Questions (FAQs)

Which is best water purifier brand in India?

The following brands are considered the best water purifiers brands in the Indian market:

1. LG
2. Eureka Forbes
3. Blue Star
4. Kent
5. Faber Galaxy

Which water purifier is best RO or UV?

You should buy the water purifier according to the water quality & TDS level. If the TDS level is below 200 you can go for a UV+UF water purifier. However, if the TDS level is above 200 you can go for an RO or RO+UV water purifier.

Is water purifier worth buying?

Absolutely. Who doesn’t need safe drinking water? Our water sources are getting highly contaminated with increased TDS levels. The studies state that around 70% of surface water in India is unfit for consumption. Therefore, yes, the water purifier is worth buying.

Which is the best water purifier to buy?

1. RO+UV+UF+Multi-stage filteration+ Mineral Booster – LG WW182EP
2. RO+UV+MTDS – Eureka Forbes Aquasure
3. RO+UF+MAT – Faber Galaxy
4. RO+UV – Havells Max 7-litres
5. Gravity-based – Eureka Forbes Aquasure from Aquaguard Amrit Water Purifier


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