Question 1

What TDS level requires RO purification?

Accepted Answer

TDS above 300 ppm requires RO purification for safe drinking water. Test your water to determine if RO is necessary.

Question 2

How often should I service my water purifier?

Accepted Answer

Service every 3-6 months depending on usage and water quality. Replace filters annually for optimal performance.

Question 3

Is UV necessary if I have RO?

Accepted Answer

Yes, UV kills bacteria and viruses that RO may not remove. RO+UV combination provides comprehensive water safety.

Question 4

How do I choose a water purifier based on my water's TDS level?

Accepted Answer

First test your water's TDS (Total Dissolved Solids) with a cheap TDS meter. Below 200 ppm, a UV or UF purifier is usually enough since dissolved salts are already low. Between 200-500 ppm, choose RO+UV so you remove dissolved impurities and kill microbes. Above 500 ppm (common with borewell or tanker water), RO is essential to bring TDS into the safe 50-150 ppm drinking range. The Bureau of Indian Standards recommends drinking water TDS stay under 500 ppm, with 50-150 ppm considered ideal for taste and mineral balance.

Question 5

Who needs an RO (Reverse Osmosis) water purifier?

Accepted Answer

You need RO if your input water has high TDS (above 300-500 ppm), or if the supply is borewell, tanker, or hard water with dissolved salts, heavy metals like arsenic or lead, nitrates, or fluoride. RO forces water through a semi-permeable membrane that removes these dissolved solids, which UV and UF cannot do. If your TDS is already low, RO is unnecessary and will only strip minerals and waste water, so pick UV or UF instead.

Question 6

Who needs a UV (Ultraviolet) water purifier?

Accepted Answer

UV is for water that is low in dissolved solids but may carry bacteria, viruses, or cysts, such as municipal tap water or a treated corporation supply with TDS under 200 ppm. UV light deactivates microorganisms without removing dissolved salts or changing taste. Because UV does not remove dissolved impurities or turbidity, it works best on visually clear water, and is almost always paired with RO or UF when the source is unreliable.

Question 7

Who needs a UF (Ultrafiltration) water purifier?

Accepted Answer

UF suits water with low TDS but visible turbidity, mud, or suspended particles, such as some municipal or overhead-tank supplies. UF uses a hollow-fibre membrane to physically block bacteria, cysts, and dirt, and it works without electricity while retaining natural minerals. However, UF cannot reduce dissolved salts or TDS, so it is not a substitute for RO on high-TDS borewell or tanker water. UF is commonly combined with RO+UV so that clean RO water gets a final microbial-safe polish.

Question 8

What is the difference between RO, UV, and UF purification?

Accepted Answer

RO removes dissolved solids (salts, heavy metals, high TDS) using a fine membrane and needs electricity plus produces some reject water. UV kills microorganisms using ultraviolet light but leaves dissolved solids untouched. UF removes suspended particles and microbes through a coarser membrane, works without electricity, and keeps minerals but cannot lower TDS. High-TDS or contaminated sources need RO (usually RO+UV+UF combined); low-TDS municipal water with only microbial risk can rely on UV or UF alone.

Specification	AtombergIntellon	Native by Urban CompanyM2	KENTSupreme Star	PureitRevito Prime	AquaguardRitz Pro	LivpureAllura Premia
Purification	RO + UV + UF	RO + UV + Copper	RO + UV + UF + TDS	RO + UV	RO + UV + MTDS	RO + UV + UF
RO Purification	Yes	Yes	Yes	Yes	Yes	Yes
UV Purification	Yes	Yes	Yes	Yes	Yes	Yes
UF Purification	Yes	No	Yes	No	No	Yes
Recommended Input TDS	Up to 2000 ppm	Up to 2000 ppm	Up to 2000 ppm	Up to 2000 ppm	Up to 2000 ppm	Up to 2000 ppm
Best Water Source	Borewell, tanker & municipal	Borewell, tanker & municipal	Borewell, tanker & municipal	Borewell, tanker & municipal	Borewell, tanker & municipal	Borewell, tanker & municipal
Mineral Retention	Mineral fortification	Copper + mineral enrichment	TDS controller retains minerals	Mineral cartridge	Mineral Guard + MTDS taste adjuster	Mineralizer cartridge
Storage Capacity	7 Liters	6 Liters	9 Liters	7 Liters	7 Liters	8.5 Liters
Warranty	1 Year	1 Year	1 Year + 3 Years Free Service	1 Year	1 Year	1 Year
Annual Maintenance	₹3,500	₹4,500	₹3,500	₹3,000	₹3,500	₹3,500
Flow Rate	15 L/hr	12 L/hr	15 L/hr	12 L/hr	15 L/hr	12 L/hr
Installation	Wall Mount	Wall Mount	Wall Mount	Wall Mount/Counter Top	Wall Mount	Wall Mount
Smart Features	Smart LED Indicators	App Control	LED Indicators	None	None	None
Special Feature	Energy Saving Mode	Copper Enrichment	TDS Controller	Auto On/Off	Taste Adjuster	Hot Water Dispenser
Price	₹25,999	₹28,999	₹28,000	₹27,499	₹17,999	₹25,990
Rating	4/5 (1,679)	4.4/5 (2,155)	4.3/5 (303)	4.2/5 (515)	4/5 (2,844)	4.1/5 (1,818)
Action	Check Price	Check Price	Check Price	Check Price	Check Price	Check Price

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Atomberg Intellon

Native by Urban Company M2

KENT Supreme Star

Pureit Revito Prime

Aquaguard Ritz Pro

Livpure Allura Premia