How to Choose Water Purifier – Best 7 Ways Explained

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How to Choose Water Purifier? If you are looking to buy a water purifier, there are a few things you need to consider before making your decision. Here in this article, you will find answers to all questions regarding choosing the best water purifier for your home or office. So, keep reading the article.

Editor’s Pick: Top 3 Best Water Purifier in India 2022 >>>

Choosing the Best Water Purifier

India with a growing population faces a big challenge in providing people with hygienic, healthy and safe water.

Indeed, city homes get their drinking water from a water supply system run by municipal corporations, but we’re still seeing so many impurities that it’s not very safe to drink.

A growing number of health problems such as indigestion, frequent fevers and infections are proof that the water we use in our kitchens is not safe enough for children, as well as for people who usually feel unwell, such as the elderly. and pregnant women. .

So, all these general problems make water purification a necessity, especially in a country like ours. This becomes more important if you live in places where urban water supply is not available and you have to rely on other sources of water such as tube wells, boreholes or rivers.

Every home should have some sort of mechanism that watches for pollution, germs, viruses or bacteria ready to harm your health.

When you start looking for the perfect water purifier for your home, there are some facts you need to know about the healthy water you need for your body.

Water should not wipe out essential nutrients and minerals such as calcium, magnesium, potassium and other elements needed in footprints.

We eat so many different kinds of food that it leads to hyperacidity in our body and many chronic diseases. To solve this problem, you must consume plenty of water to fight this condition before it turns into some kind of harmful disease.

Water washes away many of the unwanted chemicals and elements in the body that have accumulated due to poor eating habits.

If your drinking water is impure, it will not help you in this important body process of eliminating the dangers of many chronic diseases.

So before you buy any water purifier, just check out the following features and list of the best water purifiers to find out which water purifier is considered the best water purifier for home use.

How to Choose Water Purifier?

You may be overwhelmed by the numerous alternatives that are high quality, promising water purifiers.

The countless advertisements appearing in magazines, newspapers, and TV can make your dilemma worse.

So, with so many options available, you should perform a water purifier comparison based on the following criteria discussed here.

How to Choose Water Purifier

1. Purification Process

Before choosing the best water purifier for your home, you need to know what type of water supply you have.

If your area uses salty, hard water with TDS, or you need to get drinking water from a well, tube well, or hand pump, then you need to purchase a reverse osmosis (RO) water purifier.

This technology is innovative and has proven to be effective with all these water impurities. Its highlight is the accuracy of the device based on reverse osmosis with a 0.0005 micron membrane, which successfully removes all germs, bacteria and other foreign particles, as well as improves the taste of water.

If you are getting regular clean water from the utility, then you can choose an activated carbon water purifier or a UV filter that does not affect the taste of the water but purifies the water to perfection.

  • RO process

This is the most effective method for removing 99% of impurities from water. It works on the principle of reverse osmosis. A semi-permeable membrane is used that allows water to pass through.

This filtration process can effectively remove all types of physical impurities such as heavy metals, dissolved salts and other chemical contaminants, thus making the water safe to drink.

  • UV process

This process is used to kill deadly microorganisms present in the water. This process uses a UV lamp through which water passes.

High intensity ultraviolet rays deactivate all harmful microorganisms that can cause many dangerous waterborne diseases.

Since this process is only able to kill microbes in the water, their bodies are still present in the water.

Therefore, a further filtration process is required to remove the microbial bodies. A UV water purifier is the best option for low TDS areas.

  • UF process

The ultrafiltration process is ideal for drinking water treatment where the TDS level of the water is low.

The membrane is used to filter out impurities, this membrane is similar to reverse osmosis membrane with large pore size.

Unlike a UV water purifier, a UV water purifier that only kills microorganisms, a UV water purifier not only kills microorganisms, but their bodies are also filtered out in the ultrafiltration process. The biggest advantage of a UV water purifier is that it does not require electricity.

2. Power free or power based

For urban homes where the power supply is relatively stable than in rural homes, reverse osmosis and UV water purifiers are suggested due to the efficiency of their purification process and ability to deal with a wide range of dissolved contaminants and infection-causing microbes.

But this is not suitable for rural areas, since in the absence of a constant power supply, the device will be a waste of money.

Compact activated charcoal purifiers are perfect for those of you who live in the countryside or travel frequently due to their portability.

3. Wall Mounted or Counter-Top

The water purifier can be portable, like a desktop model, or stationary, like a wall model. The choice you make will depend on how much space you have planned for your purifier and whether you want it to accompany you everywhere.

While wall-mounted models take up minimal space in the kitchen, the countertop can be moved anywhere in the house, even to the lawn for a small meeting or in the car for a small picnic when you don’t want to compromise. on the quality of the water you drink.

4. Storage capacity and flow

Your choice of purifier will also largely depend on the capacity of this appliance. Storage ranges vary from 4 liters to 25 liters. You can choose according to your family’s needs.

Another factor to consider is the rate of water flow from the faucet. This criterion is one of the most important criteria for choosing the best water purifier in India.

5. Does the water purifier you bought retain essential minerals?

This is a common problem with many water purifiers, which also remove minerals from the water during the purification process. However, the presence of minerals is important because our body requires these minerals.

The Kent reverse osmosis system is one of the well-known brands that uses a TDS controller to help preserve natural essential minerals.

6. Is the water treatment company certified?

As we all know, the demand for water filters is increasing day by day, many manufacturers have released their own products making it difficult to get the best one.

To deal with such a situation, certification is important. This gives us confidence that the water purifier has been tested and certified by renowned laboratories in the world. NSF, WQA, CE are certificates that are issued to water treatment companies.

7. Don’t Forget to Read Water Purifier Reviews

Before buying any water purifier, be sure to read water purifier reviews. You can search the internet to read water purifier reviews before buying one.

This is the most unbiased opinion you can get directly from a customer who has already used the same product.

Having access to clean drinking water can make a difference in the well-being of loved ones. Therefore, when buying a water purifier, you should not make compromises.

How RO Water Purifier Works?

A reverse osmosis water purifier usually consists of a sediment filter, a pre-filter, a reverse osmosis membrane, and a post-carbon filter.

Before passing through the reverse osmosis membrane, the water passes through a sediment filter and a carbon filter to remove dust particles and chlorine from the water.

Because these impurities can damage the reverse osmosis membrane and shorten the life of the reverse osmosis membrane.

Therefore, a sediment filter and a carbon pre-filter are used to protect the reverse osmosis membrane.

The water then passes through the reverse osmosis membrane under pressure, smaller water atoms can pass through the membrane’s ultra-fine pores while the rest of the contaminants are trapped behind.

The purified water is stored in the storage tank, and the impure water is discarded by the purifier.

In reverse osmosis, only pure water can pass through the membrane. In addition, there are some important minerals present in the water that cannot pass through the membrane due to their larger size.

But these minerals play a vital role in the proper functioning of the body. Therefore, these minerals should not be removed from drinking water.

To preserve essential minerals in the water, the Kent reverse osmosis system has a built-in TDS controller in the water purifiers that maintains naturally occurring essential minerals.

Each purification process is used to remove a specific type of impurities. Therefore, many well-known brands of water purifiers also use multi-stage purification based on various purification technologies.

This is necessary in order to ensure that all contaminants, without exception, are removed from drinking water.

A combination of RO-UV, RO-UF and RO-UV-UF is used in many water purifiers to remove impurities.

Types of Water Purifier for Home

You should be aware of the different types of water purifiers before you buy. The different types of water purifiers are described as:

RO (reverse osmosis)

Reverse osmosis treatment is the most innovative and best water purification process. The reverse osmosis purification process removes all dissolved impurities from drinking water.

If the TDS level of the water purifier is high, then the reverse osmosis water purifier is the most suitable purifier.

It works on the principle of reverse osmosis, where a semi-permeable membrane is used to filter out even the smallest impurities invisible to the naked eye.

This is the only process that can remove even heavy metals and all dissolved chemicals from drinking water.

During reverse osmosis treatment, water passes through a membrane at high pressure, leaving behind all impurities and providing clean drinking water.

UV (ultraviolet)

The UV purification process is used to kill all harmful microorganisms present in drinking water, such as bacteria, viral microbes and other pathogens. This process uses a UV lamp.

Water is fed into the UV lamp, due to intense UV radiation, all microorganisms are deactivated. However, microorganism bodies are still present in drinking water.

Therefore, further cleaning is required to remove these bodies. If the water purifier’s TDS level is lower than UV water, this is a good option.

UV (Ultrafiltration)

The ultrafiltration process is necessary to purify water with low TDS levels. This process is similar to the reverse osmosis process, but the pore size of the UV membrane is slightly larger than that of the reverse osmosis membrane. This process works on the principle of gravity, so it does not require electricity.

Unlike the UV process, the ultrafiltration process not only kills microorganisms, but also flushes them out of drinking water and does not require additional purification.

The UF water purifier is easy to use and maintain and does not require the assistance of a technician to install.

Difference Between RO, UV, & UF Water Purifier

Everyone wants to drink clean water to stay healthy and protected from various harmful waterborne diseases.

Due to the rapid increase in water pollution, it is becoming impossible to obtain clean drinking water without the use of some kind of water purification system at home.

Even the water that comes from public water treatment plants is not safe to drink.

Therefore, water purifiers have become the most important appliance in every home. Each water purifier works on a specific purification technology.

However, the purchase of a water purifier becomes difficult if we do not have sufficient knowledge about them.

There are mainly three types of purification process used in water treatment: reverse osmosis(RO), UV and ultrafiltration(UF).

This begs the question of how to know which cleaning process is best for your home. To find out Which Type of Water Purifier is Best for Home, you need to know the difference between RO, UV, and UF.

Removes all the microorganisms, dissolved chemicalsKills all the microorganism but their dead bodies still present in the waterRemoves all the microorganisms from the drinking water
It requires electricityIt requires electricityIt does not require electricity
Can Remove heavy metalsCannot remove heavy metalsCannot remove heavy metals
Need pre-filtrationWater must be clear to let UV lamp work properlyCan purify turbid water
Need electricity to increase the tap water pressureCan work with normal tap water pressureWorks with normal tap water pressure

Best Water Purifier for Municipal Water

Some of the best RO water purifiers in India 2022 that offer an excellent purification process are:

(i) Kent Elegant RO Water Purifier


  • Double purification by RO-UV-UF that provides 100% pure water
  • TDS controller to retain the natural essential minerals
  • Smart RO water purifier with real-time monitoring of purity and performance

Kent Elegant is the best reverse osmosis water purifier in India 2022 as it uses the most advanced reverse osmosis treatment technology.

This is a smart reverse osmosis water purifier equipped with many high-tech features.

The Kent Elegant RO water purifier uses the patented Mineral RO technology, which provides dual purification with RO-UV-UF, which is able to remove all impurities present in drinking water.

To preserve natural essential minerals in drinking water, it is equipped with a TDS controller. Therefore, it provides clean and healthy water that is ideal for human consumption.

It has a built-in touch screen digital interface that shows real-time monitoring of the purity and performance of the water purifier.

Even this digital dashboard is pretty easy to use. This water purifier has all the essential features that make it the best reverse osmosis water purifier.

(ii) Aquaguard Delight NXT (Sure)


  • Auto Detection of water to start purification
  • Reserve mode
  • LED display
  • I-filters to remove dust particles

Aquaguard Delight NXT is also a good product from Eureka Forbes. This water purifier comes with RO, UV and UF purification technology to provide clean water for your family.

The unique taste modulator of this water purifier allows you to adjust the taste of the water according to your preference. The standby mode in this water purifier is designed for ease of use.

A simple push of a switch puts the purifier in standby mode, helping to extend its life by up to 20 hours of operation.

An LED indicator on the front of the machine shows the level of the storage tank and also indicates if there is a problem with the machine.

(iii) HUL Pureit Eco


  • Auto Detection of water to start purification
  • Reserve mode
  • LED display
  • I-filters to remove dust particles

HUL Pureit Eco Water purifier is from Hindustan Lever Limited, a manufacturer of efficient and environmentally friendly water purifiers. This is a well thought out and economical purifier for those of you on a tight budget.

It has a 4-stage purification system, including a precipitating filter to remove fine and large particulate matter.

An activated carbon filter to inhibit chlorine and harmful pesticides and absorb other odor-causing compounds, a sediment plus filter to prevent carbon particles and other impurities from entering the UV radiation cameras and UV to deactivate viruses, parasites and bacteria present in the water supply.

It has a smart alert system that alerts you 15 days before the filter expires so you can replace it in time and keep a safe water flow for your family.

The filter kit is designed to treat 3000 liters of water and shuts off the water supply if the filter reaches its end of life.

The smart and elegant design is another plus with matching LED indicators that inform you about tank filling, cleaning on/off, CSF change. It is lightweight and can be wall mounted or used as a table top.

The robust, food-grade ABS housing ensures long life, while the built-in voltage regulator controls voltage fluctuations and surges.

The tap is breakage resistant and durable due to a strict quality assurance process.

Top 3 Best Water Purifier in India 2022 You Can Buy Right Now: –

Final Words

The decision to purchase the most reliable, efficient, and fastest purifier can be difficult, but making the right decision can take extra time to explore options that become the need of the hour as it is about you and your family’s health.

The most ideal way to find out which water purifier is best is to talk to friends who have already used this device.

In this age of the web and the Internet, online shopping sites like Amazon are at your disposal to start your research from a wider range and narrow down the list to a few products that best suit your needs.

You can choose a model depending on what kind of water you get, the number of family members. Be sure to carefully read the details of the water purifier mentioned in this buying guide and also check out the best water purifiers listed here before choosing any other brand for yourself.