RO vs UV vs UF: Which Water Purifier is Best?

When it comes to choosing a water purifier, the options can get confusing—RO, UV, UF... what do they all mean, and which one do you actually need?

Each technology serves a different purpose and works best under specific water conditions. In this blog, we break down the differences between RO (Reverse Osmosis), UV (Ultraviolet), and UF (Ultrafiltration) to help you choose the right purifier for your home.

🚰 1. RO (Reverse Osmosis) Purifiers

💧How It Works:

RO uses a semipermeable membrane to remove dissolved salts, heavy metals, and harmful chemicals by forcing water through under pressure.

✅ Best For:

• High TDS water (above 200 ppm)

• Hard water (borewell or tanker supply)

• Areas with industrial or chemical contamination

❌ Limitations:

• Requires electricity

• Wastes some water during purification

• Removes some essential minerals (can be fixed with a TDS controller)

⭐ Ideal For:

Households with salty or metallic-tasting water, especially from borewells.

🌞 2. UV (Ultraviolet) Purifiers

💧How It Works:

UV purifiers use ultraviolet light to kill bacteria, viruses, and other microorganisms without altering the water’s taste or smell.

✅ Best For:

• Low TDS water (municipal supply)

• Water with microbial contamination

• Safe water sources that need disinfection only

❌ Limitations:

• Does not remove dissolved salts or chemicals

• Needs electricity to work

⭐ Ideal For:

Cities where water is already treated but needs extra protection from microbes.