10 best RO water purifiers to decontaminate your drinking water

RO water purification process can remove toxins from drinking water using a partially permeable membrane. Discover the best RO water purifiers.
Install the best RO water purifier in your home to drink safe water. Image courtesy: Adobe Stock.
Tanya Shree Updated: 18 Jun 2024, 17:39 pm IST

Do you often wonder if your tap water is safe and pure? Clean drinking water is essential for overall health and well-being. When it comes to removing invisible contaminants like chlorine or lead from the water, using the best water purification system becomes important. Among several available options, RO or reverse osmosis water purifiers stand out for their quality and features. This specially designed water purification system may help remove unwanted molecules from water by forcing it through a semipermeable membrane. By using advanced water purification technology, RO water purifiers can help you drink safe and clean water without compromising the taste. They use several filtration stages to improve the quality of your drinking water. We have compiled a list of the best RO water purifiers, which you may install in your home to improve the health of your family.

What is reverse osmosis?

RO water purifiers are specially crafted to work on the principle of reverse osmosis. It encompasses a pre-filtration stage where the water first passes through pre-filters like carbon filters. It can remove large particles like sand and dirt. Then comes the pre-treated step in which water is forced through a semipermeable RO membrane under high pressure. It allows only water molecules to pass through while eliminating impurities like dissolved salts and heavy metals. After that, water may go through post filters to remove any remaining taste or odour-causing chemicals. Once the purification process is completed, water is then stored in a tank. Some of the best water purifiers for the home also come with a mineralisation stage where essential minerals are infused into the water to enhance the taste and health benefits of the water.

10 best RO water purifiers

Check out this list of the best RO water purifiers in India and pick the one that suits your needs:

1. Livpure Allura Water Purifier

Try the best water purifier that comes with reverse osmosis and mineralization facilities. This one from Livpure might be a good choice for you! It is specially designed with 10-stage purification to ensure the highest quality of purified water. The Livpure water purifier is equipped with an alkaliser, which may help enhance the pH of water for optimal hydration and health benefits. It also features a super sediment filter, which can help remove even the smallest particles and sediments from your water. With its 7-litre storage capacity, this water purifier can supply ample water, which allows you to say goodbye to the hassle of frequent refills. It comes with tank UV sterilisation to ensure that the water is purified and free from harmful microorganisms. This purifier may help infuse copper into your water, add essential minerals using mineraliser and remove viruses and bacteria with the advanced system. The brand also claims that this product comes with 30-month free maintenance services.

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2. Aquaguard Sure Delight NXT 6-Stage Water Purifier

Aquaguard Sure Delight NXT 6-Stage Water Purifier comes with a 1-year free maintenance service and 1-year warranty. This water purifier uses a 6-stage purification process to remove bacteria, viruses, dust and dirt. It claims to offer 10x chemical protection through Sedi Shield, Particulate Filter and RO Maxx purification stages. By using Superior RO Maxx Technology, the aquaguard water purifier promises to remove contaminants like mercury, microplastics, lead and pesticides. It also uses UV E-boiling technology to ensure that the water is as pure and healthy as water boiled for 20 minutes. This purifier also features Smart LED Indication to keep you informed with intuitive alerts for service reminders, tank-ful indicators, filter life warm=nings and electronic error to ensure the optimal performance of the purifier. The brand also claims that its product is certified by the National Accreditation Board for Testing and Calibration Laboratories and Water Quality Impact Assessment.

3. Kinsco Aqua Punch 15 Liter Copper + RO + UV + UF + TDS Adjuster Pure Copper Water Purifier

Kinsco Aqua Punch 15 Liter Copper + RO + UV + UF + TDS Adjuster Pure Copper Water Purifier comes with a storage tank. The accessories that come with this purifier include a pre-filter bowl, spun filter, connectors, divider valve, spanner and tap. It uses advanced UV technology, mineral technology, an 80 GPD membrane high flow rate and a 100 GPD booster pump. This tank has long-lasting filters and a water capacity of 15 litres.

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4. KENT Elegant Lite RO Water Purifiers

KENT Elegant Lite RO Water Purifiers promise to remove bacteria, viruses, chemicals and dissolved impurities to make the water 100 per cent pure and healthy. The brand claims that its products meet drinking water standards of IS:10500. It uses multiple purification processes of RO, UF, TDS Control and UV disinfection in storage tanks to make the water pure. The Kent RO water purifier claims to retain essential minerals using the Mineral ROTM Technology.

5. AO Smith Z5 Water Purifier

Try the baby-safe water purifier from AO Smith. This water purifier uses 8 stages of purification technology, including pre-filter, sediment filter, advance recovery technology, SCB filter +, side stream RO membrane, alkaline min-tech + ZX double protection dual filter, post carbon block and SCMT. The Ao Smith water purifier promises to retain a natural taste with essential minerals with Alkaline Min-Tech. It comes with a 1-year comprehensive warranty, offers a smart digital display and promises to provide you with 100 per cent purified water all the time.

6. Wavy Ora RO + UV + ZINC ALKALINE + TDS ADVANCED Multi-Stage Water Purifier

Wavy Ora RO + UV + ZINC ALKALINE + TDS ADVANCED Multi Stage Water Purifier uses advanced RO + UV purification technology to ensure that you get clean and healthy drinking water. This purifier imparts crystal-clear clarity to drinking water by removing pesticides, hardness and heavy metals. Comes with a warranty of 1 year, this purifier comes with an NSF-certified premium quality booster pump.

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7. Urban Company Native by UC M1 Copper RO+UV+UF+MTDS Water Purifier

Urban Company Native by UC M1 Copper RO+UV+UF+MTDS Water Purifier comprises 10 crucial stages, including UV, UF, and TDS control. It promises to provide water enriched with copper, alkaline, and essential minerals. The brand also claims that this product is US FDA certified, and all filters, membranes and electrical parts changes are covered at zero service cost. The in-tank UV of this water purifier enhances the safety of the water with continuous UV light, eliminating germs, bacteria and viruses for 24*7 protection against infections providing mineral-enriched, pure and safe RO water.


8. AQUA D Pure 4 in 1 Copper RO Water Purifier

AQUA D Pure 4 in 1 Copper RO Water Purifier claims to remove 95 per cent to 98 per cent TDS, and 100 per cent natural water. This fully automated RO water purifier provides multi-stage purification. The push-fit component of this water purifier can provide leaf-free performance and provides the goodness of copper. This copper-infused water contains antimicrobial and anti-inflammatory properties along with alkaline technology, which may help in balancing the pH level of water.


9. HUL Pureit Copper+ Mineral RO + UV + MF 7 Stage Water Purifier

HUL Pureit Copper+ Mineral RO + UV + MF 7 Stage Water Purifier comes with precise copper dosing that infuses copper in every glass of water. The dual water dispensing can help you choose between copper and regular RO water based on your daily needs. Its unique patented copper charge technology can charge the water with 99.8 per cent pure copper in real-time. It features intelligent copper auto-cleaning, which can ensure fresh copper infusion at all times. The mineral enhancer cartridge can enrich the water with essential minerals like calcium and magnesium. It also features UV sterilization, a high purification speed of up to 24 LPH, a long filter life of 6000 litres, 7 stage purification, tested with international labs & standard and membrane protector.


10. Proven Pixer Copper RO Water Purifier

Proven Pixer Copper RO Water Purifier comes with 12-stage filtration and 12-liter storage. It can purify water with the goodness of copper. This water filter is easy to install and is fully automatic. Made in India, this water purifier is a perfect option for home and office use.


How to choose the right RO water purifiers?

  • Assess the water quality: Before selecting the best RO water purifiers, it is important to understand the quality of your home’s drinking water supply. Testing the water will help you understand the specific impurities and choose a purifier with the right filtration capabilities.
  • Purification technologies: RO water purifiers come with multiple purification technologies to ensure optimal filtration. Understanding the technologies like pre-filtration, RO membrane, UV filtration, UF filtration and TDS can help choose a purifier that suits your water quality and health needs.
  • Storage capacity: Choose a purifier that can store from at least 7 to 12 litres of water to meet your daily water consumption needs.
  • Maintenance and operating costs: It is essential to follow a regular maintenance process to keep your RO water purifier functioning efficiently. So, consider the filter replacement, service requirements and energy consumption while choosing a purifier.
  • Advanced features: Look for RO purifiers that come with a digital display, mineraliser, auto shut-off and smart app integration.
  • Certifications: Ensure that the purifier you choose complies with national and international water quality standards. Look for purifiers that come with certifications from bodies like ISI or NSF.

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What are the benefits of RO water purifiers?

  • Removes contaminants: RO purifiers can remove a wide range of contaminants like dissolved salts, heavy metals, and chemical impurities from the water, making it safe and healthy to drink.
  • Improves taste and odour: By removing impurities, RO purifiers enhance the overall taste and odour of the water. This makes the water more palatable and contributes to better hydration and health.
  • Provides health benefits: Consuming RO purified water can lead to numerous health benefits like reducing the risk of waterborne diseases, lower exposure to toxins and balanced mineral content. A study published in ResearchGate mentioned that RO can remove lead, mercury and chlorine, which can cause brain damage, anaemia and other diseases.
  • Brings versatility: RO water purifiers can purify water from various sources like municipal supply, borewells and surface water.
  • Enhances convenience: RO water purifiers come with a range of features like automatic operation, smart indicators and more, which makes them user-friendly.

How to maintain RO water purifiers?

  • To ensure efficient operation and longevity of RO water purifiers, make sure to change the sediment and carbon filters every 6 to 12 months and the RO membrane after 2 to 3 years.
  • Ensure that your RO storage tank and system are clean and sanitised at least once a year to prevent bacterial growth.
  • Make sure that the water pressure is within the recommended range as low pressure can affect the system’s efficiency.
  • Regularly test the output water quality. It will help you find any issues.
  • Regularly inspect the system for any signs of leaks or drips.
  • Make sure to check the seals and O-rings during maintenance. Replace them if there are any signs of wear or damage.
  • Clean the RO membrane if it is clogged by following the manufacturer’s instructions.
  • Make sure that the RO tank is working properly.
  • Take professional help once a year for a thorough check and servicing of the system.

How to use water purifiers?

  • The first step is buying the best water purifiers and then getting them installed in your home.
  • After this, fill the tap water into the purifier’s inlet.
  • The purification technologies of the purifiers like RO, UV or gravity treat the water.
  • The purified water then gets collected in the water tank.
  • Now, dispense the water and use it as per your need.

Frequently asked questions (FAQs)

  • Is pure RO drinking water safe?
    According to the National Institute of Hydrology, Roorkee, RO purifiers can remove bacteria, viruses and other metals, which can impact your health. But they also change the taste of water by reducing TDS and essential minerals. It can also reduce the level of calcium and magnesium in the water, which can impact your health.
  • What is the difference between a normal water purifier and an RO water purifier?
    Reverse Osmosis purifiers remove dissolved salts, heavy metals and impurities using a semi-permeable membrane. This makes them ideal for hard or saline water. Other purifiers like UV and UF use ultraviolet light or ultrafiltration to kill or filter out bacteria and particles.
  • Does RO add minerals?
    Does reverse osmosis water have any minerals? Reverse osmosis water generally has very low mineral content since the filtration process removes most minerals and contaminants. However, trace amounts of minerals and contaminants may still be present in the water after reverse osmosis.
  • Which RO water purifier is best? 
    When choosing an RO water purifier, look for multi-stage filtration, high flow rate, TDS reduction, a reliable brand, ease of maintenance, energy efficiency and an adequate storage tank. Ensure that it has features like UV/UF filters, mineral retention and smart indicators for filter replacement and water quality.
  • Which are the best water purifier brands?
    There are several brands that offer the best RO water purifiers. Some of them are listed above like Livpure, Aquaguard, and Kent. You can check the specifications and features of these products and choose the one that suits your needs.
  • What are the different types of water purifiers?
    There are different kinds of water purifiers and each one has specific benefits and features. RO water purifiers are one of the most common types of water purification systems. They work by pushing highly pressurised water through a semipermeable membrane. This water purifier helps remove contaminants and contributes to clean water supply. Another type of water purifier is distillation, which helps separate contaminants from the water through boiling. Ultraviolet water purifiers help kill microorganisms in water using UV light.

(Disclaimer: At Health Shots, we make a constant effort to break the clutter for our readers. All products listed are carefully curated by the editorial team but use your discretion and an expert’s opinion before using them. Their price and availability may differ from the time of publication. If you buy something using these links in the story, we may earn a commission.)

Tanya Shree

Meet Tanya Shree! Armed with a Bachelor's degree in Journalism and a flair for photography and visual communication, she is a stickler for detail. An avid reader and a shopping aficionado, she has a knack for spotting hidden gems and dissecting products. Her own passion to check out the best deals online matches her dedication to ensure our readers get information that is research-backed and fact-checked. With her clear, concise and reliable content, Tanya helps users make the best choice when it comes to choosing health and wellness products from the vast online pool. ...Read More

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