Types of Water Purifiers

Are you planning on purchasing a water purifier but are confused about which one to pick? Here we have provided a detailed explanation of all the Types Of Water Purifiers that are available on the market.

With pollution, even the drinking water is heavily contaminated. So in order to drink fresh and clean water, we need a Water Purifier that purifies the water and removes all the dust, bacteria and other impurities from the water and makes it suitable for our consumption.

But when it comes to water purifiers, there are a lot of different types of water purifiers that are designed for various needs. Here are the top water Purifier types that are available in India.

While RO is famous, just RO technology isn’t enough to get 100% pure drinking water.

Types of Water Purifiers

1. RO

The RO Reverse Osmosis is one of the most popular types of water purifiers, which uses the semi-permeable membrane (through which liquids can easily flow through) to filter the water and remove all the sediments and other dissolved impurities from the water. Reverse osmosis is nothing, but it reverses the natural flow of the water by applying pressure and reducing the TDS level of the water.

Also Read: How Much Water is Wasted in RO Water Purifier?

2. UV

The UV or UltraViolet water purifier is another popular one that we use. It uses ultraviolet rays with a high density and purifies the water. It removes all the bacteria, viruses and other microbes from the water and makes it better for consumption.

3. UF

The UF or Ultrafiltration method is also one of the common methods of purifying the water. The UF method uses a semi-permeable membrane and allows the water to flow through it, and collects all the impurities from the water.

Also Read: Best RO UV UF TDS Water Purifier In India

4. NF

The NF or Nano Filtration is the new waterproofing technology that is just booming in India. The NF water purification water purifier method also has a membrane that lets water pass through it. But unlike RO, the membrane has bigger pores which let the salts pass through it.

The NF method is suitable even for areas with low water pressure. It purifies even the dissolved impurities and heavy metals like Lead, Arsenic, etc.., from the water and makes it suitable for us to consume.

5. Gravity Based

The Gravity based water purifier is the old school water purifier which purifies the water just by its natural flow. It works even without electricity, but it doesn’t do a great job in water purification like the other methods as it just filters the water with Gravity.

While these are the top water purifier types that are used, most water purifiers work with two or more of these technologies combined together to provide us with 100% pure water that is suitable for consumption.

What are the other technologies that water purifiers have?

Most water purifiers these days come with a few other technologies to enhance the purity of the water and make it even better for us to drink.

1. Carbon filter

Some water purifiers do have a carbon filter which filters the water and makes sure to remove all the chemical impurities from the water and make it suitable for consumption.

2. Taste Enhancer

Most water purifiers these days do come with Taste Enhancers which add to the taste of the water and make it better for consumption.

3. Mineral Technology

Mineral Technology is something that almost all the reputed brands offer in water purifiers which adds all the essential vitamins and minerals back to the water.

Water goes through a lot of purification stages, and while the impurities are removed from them by each step, they also lose out on all the essential vitamins and minerals that they contain, so that mineral tech adds back all of those and makes it healthier for us.

Other things to know about water purifiers

You must choose a water purifier based on a lot of different things:


The TDS value, Total Dissolved Solids, is very important to consider. The TDS value might be different for every area. You can calculate it with the help of a TDS Meter. The more the TDS, the higher purifying technology it needs. So choose the Water Purifier according to the TDS value, which is measured in cubic metres per hour.


The size of the water purifier is subjective, and you can choose a size that is suitable for your family. The size simply means the amount of water that the water purifier can store.


Yet another factor that is totally subjective. Water Purifiers are available in various price ranges. So make sure to choose a budget first and then start looking out for options.

Also Read, best water purifier between 10000 and 20000.


The main role of a water purifier is to remove all the impurities and make them suitable for consumption. But these days, there are a lot of additional features in water purifier like Water level check, hot and cold water purifier, TDS controller, Child lock, etc.., so if you need any special feature, in particular, make sure to look for them and then go ahead and purchase your water purifier.

Most water purifiers have two or more purifying technologies like RO, UV, UF, NF etc.., and they ensure to provide it with 100% pure water. If you have a toddler at home and are looking for a water purifier that is baby safe, too, look for options with more technologies.

Hence, you have to decide carefully, and that’s where this water purifier buying guide will help you.

Gayathri V
Gayathri V
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