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RO vs UV Water Purifiers : Which Is Better for Clean Drinking Water In India 2025
When choosing between RO and UV water purifiers, understanding your water quality is key. RO (Reverse Osmosis) purifiers are ideal for areas with high TDS levels, such as borewell or tanker water, as they can remove dissolved salts, heavy metals, and chemical impurities through a multi-stage filtration process. In contrast, UV (Ultraviolet) purifiers are better suited for municipal or soft water supplies, as they use UV light to kill bacteria and viruses but do not remove dissolved solids or chemicals. While RO purifiers offer comprehensive purification, they often lead to water wastage and require more maintenance, whereas UV purifiers are energy-efficient and cost-effective, but less thorough.
RO vs UV Water Purifiers : A Detailed Comparison
| Feature | RO (Reverse Osmosis) Purifier | UV (Ultraviolet) Purifier |
|---|---|---|
| Purification Method | Uses a semi-permeable membrane to remove TDS, heavy metals, and microbes | Uses UV light to kill bacteria, viruses, and other pathogens |
| Removes TDS (Total Dissolved Solids) | ✅ Yes – effective for hard water (TDS > 300 ppm) | ❌ No – does not remove dissolved salts or metals |
| Kills Microorganisms | ✅ Yes | ✅ Yes |
| Removes Chemicals/Heavy Metals | ✅ Yes (arsenic, fluoride, lead, etc.) | ❌ No |
| Water Wastage | ❌ Yes – can waste up to 3x the purified water | ✅ No – no water wastage |
| Electricity Required | ✅ Yes | ✅ Yes |
| Maintenance Cost | 🔁 Higher (membrane + filters) | 🔁 Lower (lamp replacement occasionally) |
| Recommended For | Areas with high TDS or contamination (borewell or tanker water) | Areas with low TDS municipal water |
Top RO and UV Water Purifiers (2025 Picks) :
Here are top-rated models based on user reviews, performance, features, and value for money:
Top RO Water Purifiers :
1. Kent Supreme RO + UF + UV + TDS Control (8L)
- Technology: Multi-stage purification with TDS controller
- Storage: 8 litres
- Ideal For: Hard water from borewell or tanker
- Pros: Retains essential minerals, zero water wastage
- Rating: ★★★★☆ (4.3/5)
- Customer Review: “Very reliable, tastes great, and safe for kids. Worth the price.”
KENT RO Systems reigns as India’s No.1 RO water purifier brand, holding over 40% market share and the trust of 5+ million households. Renowned for delivering 100% pure water, KENT shields families from waterborne threats like cholera, typhoid, and jaundice. With an unmatched range of purifiers, including cutting-edge alkaline and copper-enriched models, KENT turns every sip into a step toward better health.
2. HUL Pureit Copper+ Eco Mineral RO + UV + MF (10L)
- Technology: Copper-enriched RO + UV purification
- Storage: 10 litres
- Ideal For: All water types, especially urban homes
- Pros: Adds copper health benefits, large tank
- Rating: ★★★★☆ (4.4/5)
- Customer Review: “Stylish, functional, and pure copper water – amazing taste!”
Built with over 15 years of technological expertise, Pureit offers a wide range of advance RO & UV water purifiers to deliver 100% safe & healthy drinking water, to every Indian household. With its best-in-class purification technology, it enriches water with nutrients inspired by nature and modern science.
3. Aquaguard Aura RO+UV+MTDS (7L)
- Technology: RO + UV + MTDS with Active Copper
- Storage: 7 litres
- Ideal For: Compact kitchens and mixed water sources
- Pros: Energy-efficient, easy MTDS control
- Rating: ★★★★☆ (4.2/5)
- Customer Review: “Perfect for city water, compact and works flawlessly.”
Aquaguard is a popular water purifier brand owned by Eureka Forbes Limited, a multi-product, multi-channel organization known for its health and hygiene products. Eureka Forbes is a part of Advent International, a private equity firm. The company manufactures and sells a variety of products including water purifiers, vacuum cleaners, air purifiers, and security systems.
Top UV Water Purifiers :
1. Kent Ultra Storage UV Water Purifier (7L)
- Purification: UV + UF
- Storage: 7 Litres (rare for UV systems)
- Ideal For: Municipal water with low TDS
- Pros: Inexpensive, low maintenance, storage included
- Amazon Rating: ★★★★☆ (4.1/5)
- Customer Review: “Low-cost purifier, simple and effective for clean water.”
2. Aquaguard Marvel UV + UF Water Purifier
- Technology: UV + UF with Active Copper
- Ideal For: Soft water sources (TDS < 200)
- Pros: Sleek design, no water wastage
- Amazon Rating: ★★★★☆ (4.0/5)
- Customer Review: “Does the job well, tastes good. Best for soft water.”
3. HUL Pureit Classic G2 UV Water Purifier
- Purification: UV with long-life filters
- Capacity: Non-storage
- Pros: Best for city homes with continuous water supply
- Amazon Rating: ★★★★☆ (4.0/5)
- Customer Review: “Small and simple. Great for bachelor flats or city homes.”
Which One Should You Choose ?
Choose an RO Purifier if :
- Your water source is borewell or tanker.
- TDS level is above 300 ppm.
- You want to remove chemicals, heavy metals, and salts.
- You can afford slightly higher maintenance costs.
Choose a UV Purifier if :
- Your water source is municipal supply with low TDS.
- You only need to kill germs and viruses, not remove salts.
- You prefer low maintenance and eco-friendly (no water waste).
Final Verdict : Best Water Purifier(2025)
Best Overall : HUL Pureit Copper+ Eco Mineral RO + UV + MF (10L)
- Why ? Offers RO+UV protection, copper infusion, large tank, stylish design, and suits all water types.
- Rating: ★★★★☆ (4.4/5)
- Best For: Families, health-conscious buyers, and homes with hard or mixed water sources.
Conclusion :
Both RO and UV water purifiers serve different purposes based on the quality of input water. In 2025, top brands like Kent, HUL Pureit, and Aquaguard continue to offer reliable, multi-stage purification systems tailored to Indian households.
If your budget and needs allow, RO+UV+TDS controllers offer the best of both worlds. However, if your water is already safe and low in TDS, a UV-only purifier is more than enough.
FAQs :
Q1: Which is better – RO or UV water purifier?
A: It depends on your water source. RO purifiers are better for hard water with high TDS levels, while UV purifiers are suitable for municipal water with low TDS.
Q2: Can a UV purifier remove dissolved salts and heavy metals?
A: No. UV purifiers only kill microorganisms like bacteria and viruses. They cannot remove dissolved salts, heavy metals, or chemicals present in the water.
Q3: Does RO purification waste water?
A: Yes. RO purifiers typically waste 2-3 litres of water for every litre of purified water. However, modern models now come with zero water wastage technology to reduce this impact.
Q4: Is a UV water purifier enough for Indian homes?
A: UV purifiers are suitable for homes with low TDS water (below 300 ppm), such as municipal supplies. If your water contains chemicals or is hard, you should go for RO or RO+UV purifiers.
Q5: Are combo purifiers with RO + UV better than standalone models?
A: Yes. RO + UV + UF + TDS control purifiers offer comprehensive protection – they remove both chemical and microbial contaminants, making them ideal for most Indian households.
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