A Complete Guide to the Types of Water Purifiers
PUBLISHED ON: 26-Sept-2025
Did you know that over 70% of India’s surface water is contaminated, according to reports from the Central Pollution Control Board? Nearly 1 in 3 households face unsafe drinking water as per the WHO, which makes water purification not just a convenience, but a requirement.
Some homes receive hard water rich in dissolved salts, while others rely on a municipal supply that may carry bacteria or chlorine. In some areas, water may not taste good or lack essential minerals altogether. This is why different types of water purifiers exist, each designed to tackle specific challenges, from removing microbes to improving taste and mineral balance.
Whether it’s an RO water purifier for high TDS water, a UV purifier for microbial protection, or a smart purifier with advanced monitoring, understanding the options helps you choose the best fit for your family’s health and lifestyle.
This blog will explore all major categories—RO, UV, smart, alkaline boost, active copper, under-counter, stainless steel tank, hot & ambient, slim, non-electric, and 2 year filter life water purifiers, so you know exactly what works for your home.
RO Water Purifier
A RO water purifier (Reverse Osmosis) uses a semipermeable membrane to remove dissolved salts, heavy metals, and impurities from water. It is particularly effective in treating hard water with high TDS (Total Dissolved Solids). If your water source is municipal, borewell, or tanker supply, an RO purifier ensures safe and great-tasting water.
Best suited for: Homes receiving hard water with high levels of dissolved impurities.
UV Water Purifier
A UV water purifier works on Ultraviolet disinfection technology. The UV lamp deactivates bacteria, viruses, and pathogens, making the water microbiologically safe. It does not alter the TDS level of water, which makes it ideal for municipal or soft water sources.
Best suited for: Areas with relatively clean, low-TDS water supply where microbiological contamination is a concern.
Smart Water Purifier
Technology has changed the way we use purifiers, and a smart water purifier is proof of this. These purifiers come with app-based controls, real-time monitoring, filter life indicators, and service alerts. They ensure that you always know the health of your purifier and when it requires servicing.
Best suited for: Households looking for convenience and control at their fingertips through apps.
Active Copper Water Purifier
Drinking copper-enriched water is an age-old tradition, known to boost immunity and aid digestion. An active copper water purifier infuses the right amount of copper ions into water, ensuring health benefits without the hassle of storing water in copper vessels.
Best suited for: Families looking to add a copper boosting element to their daily drinking water.
Alkaline Boost Water Purifier
With rising interest in health and wellness, many people prefer alkaline water for its benefits, such as better hydration, balanced pH levels, and improved digestion. An alkaline boost water purifier enhances the alkalinity of water, making it more beneficial for your body.
Best suited for: Families and individuals looking for long-term wellness benefits.
Under Counter Water Purifier
Space-saving and sleek, an under counter water purifier is installed beneath the kitchen sink and connected to a dedicated faucet. This makes it an excellent choice for modern modular kitchens where aesthetics matter as much as functionality.
Best suited for: Homes with limited countertop space and those wanting a clutter-free kitchen.
Non-Electric Water Purifier
A non-electric water purifier typically uses gravity-based or UF (Ultra Filtration) technology to remove dirt, chlorine, and certain microorganisms. These purifiers are affordable and easy to maintain.
Best suited for: Municipal water supply with low TDS and areas with frequent power cuts.
2 Year Filter Life Water Purifier
One of the concerns for people investing in a water purifier is frequent filter replacement. A 2X filter life water purifier ensures extended filter durability for 2 years, meaning lower maintenance costs and fewer interruptions.
Best suited for: Families and households that prefer low-maintenance solutions.
Stainless Steel Tank Water Purifier
A stainless steel tank water purifier offers superior hygiene, durability, and corrosion resistance. Stainless steel prevents bacterial growth and ensures long-lasting, safe storage.
Best suited for: People prioritising hygiene and long-term durability in their water storage.
Hot & Ambient Water Purifier
Imagine hot water at the touch of a button for tea, coffee, baby food, or cooking. A hot & ambient water purifier combines purification with instant hot water dispensing, making it a friendly solution to get water at the desired temperature.
Best suited for: Those who frequently use hot water in their kitchen.
Slim Water Purifier
Not every home has the luxury of a large kitchen. A slim water purifier is designed to fit in compact spaces while still delivering advanced purification. Stylish and efficient, it blends easily with modern interiors.
Best suited for: Homes and apartments where space optimisation is crucial.
Conclusion
Choosing the right purifier depends on your water source, family size, and lifestyle. Whether you need the powerful purification of an RO water purifier, the immunity support of an active copper water purifier, or the space-saving convenience of a slim water purifier, there’s a perfect solution for every need.
By understanding the different types of water purifiers, you can ensure safe, pure, and healthy drinking water for your loved ones.
Frequently Asked Questions (FAQs)
Which type of water purifier is best for hard water?
A RO water purifier is best for hard water because it effectively removes dissolved salts and reduces TDS levels, making the water safe and palatable.
Do I need a UV or RO purifier for municipal water supply?
If your municipal supply already has low TDS, a UV water purifier or even a non-electric water purifier can be sufficient. A RO water purifier is recommended if the TDS is high.
What should I consider before buying a water purifier?
Check the source of your water (borewell, municipal, tanker), TDS levels, kitchen space, family size, and lifestyle needs. Features like 2 year filter life, stainless steel tank, or hot & ambient water options can add extra convenience.
