Water Purifier Buying Guide

Importance of Checking TDS

Check TDS of tap water before deciding on a water purifier.
RO purifiers can reduce TDS by over 90%, but excessive use can decrease TDS to less than 50.
Use a TDS meter to check TDS levels.

TDS < 200: Use a UV/UF water purifier.
TDS 200-500: Consider a Nano or RO purifier with TDS adjustment.
TDS > 500: Use an RO water purifier (no need for TDS adjustment).
Water containing arsenic or lead: Use a Nano or RO purifier regardless of TDS.

TDS < 500: Necessary to stay within appliance limits; RO may still be needed.
Low TDS levels: Can mix a small amount of UF purified water to maintain TDS levels ideal for drinking (50-150 ppm).

Filter Maintenance Costs
- Urban Company offers a 2-year warranty on filters.
- Check replacement frequency and costs.
Service Network
- Kent and Aquaguard have the best networks.
- Service depends on area; ask for demonstrations if required.
Pre-filtration
- Pre-filters and sediment filters help extend the life of the RO membrane.
- Important for areas with high sediment levels in water.
Filter Options
- UF Filters: Used for removing viruses and bacteria.
- Carbon Filters: Removes odors and improves water taste.
Additional Features
- Mineralizer & Alkaline modules: Optional.
- Copper infusion: May alter water taste.
- Tank Capacity: Ranges from 5 to 10 liters; important during power cuts.
- Stainless Steel Tanks: Available in some Aquaguard and Havells models.
- Hot Water Dispensing: Only in some models like AO Smith Z1.
- Electricity-Dependent Dispensing: Relevant for areas with frequent power cuts.
  - Touch-based dispensing models not recommended without power backup.
- TDS Level Display: Available in Urban Company models.
Price Range
- Ranges from ₹8000 to ₹20000 depending on advanced features.

Lifepure Glow Star & Lifepure Glow Pro
- Similar capabilities; Glow Star includes an optional mineralizer module.
- 7-liter capacity.
Genra (with stainless steel tank)
- Dispenses without electricity, ideal for families of 3-5 people.
Eco (basic model)
- No hot water dispensing.
AO Smith Z8 (advanced model)
- Includes hot water dispensing.

Sure Delight
- 6-liter tank, 5-stage filtration.
Kent Supreme RO
- Good service network, 10-liter capacity.
Urban Company Native M RO Purifier
- 10-stage filtration, 2-year warranty.
- Touch-based water dispensing (needs uninterrupted power).

Ideal for TDS < 200 ppm
Pre-filters & Sediment Filters Needed
- Removes large particles and extends filter life.
- Not always included in Aquaguard and Kent models; to be purchased separately.
Warranty & Maintenance
- Typically 1-year; some offer 5-year UV lamp warranty.
- Filter replacement costs range from ₹1500 to ₹2000.
Tank Size & Material
- Ranges from 0 (instant purifiers) to 10 liters.
- Stainless steel tanks available in specific models like Aquaguard Marvel.
Electricity Dependency
- Some models dispense without electricity.
Hot Water Dispensing
- AO Smith Z1 provides hot water (only UV purifier).

Lifepure Glitz UV
- 7-liter tank, suitable for small-medium families.
Faber XV8
- Includes essential filtration, decent service in Tier 1 and 2 cities.
H PURE Classic G2
- Includes 5-year UV lamp warranty.
- Provides SS tank and optional TDS adjuster.

Ideal for TDS 200-500 ppm.
Less water wastage compared to RO purifiers (0.5-1.5 liters per liter purified).
Effective in removing heavy metals like lead and arsenic.

Pure Pro PS
- Supports TDS up to 1200 ppm; includes UV, UF, and carbon filters.
KN Healthy Drops
- Similar to Pure Pro; no UV sterilization, lower filter replacement costs.