The Science Inside Your RO Water Purifier
Ever wondered what actually happens inside your RO water purifier? That quiet unit in your kitchen is working harder than you think, using science-backed stages to ensure every drop is safe, healthy, and great-tasting.
Stage 1: Pre-Filtration
Water first passes through a sediment filter to trap dirt, sand, and rust particles. This is more important than it sounds — without it, the RO membrane would clog quickly, shortening your purifier’s lifespan.
Stage 2: Activated Carbon Filtration
This stage targets chlorine, pesticides, and organic chemicals. It also removes unpleasant tastes and odours, so the water is not only safe but also pleasant to drink.
Stage 3: Reverse Osmosis (RO) Membrane
The heart of an RO water purifier — a semi-permeable membrane that filters out dissolved salts, heavy metals like lead, cadmium, and arsenic, and even microscopic pathogens. Pureit’s RO membranes are WQA-certified, ensuring proven removal of harmful contaminants.
Stage 4: Microfiltration (MF)
This acts as a safety net, ensuring any remaining fine particles or microbes are eliminated before water reaches you.
Stage 5: UV Sterilisation
UV light deactivates up to 99.99% of bacteria and viruses, making water microbiologically safe to drink.
Stage 6: Mineral Enrichment
Some Pureit models, like Revito Prime Mineral, add back essential minerals like calcium and magnesium — balancing health benefits with purity.
Stage 7: In-Tank Protection
An advanced in-tank UV keeps stored water fresh and safe until you drink it.
Why Are GKK Filters Essential?
All these stages rely on filters and cartridges that wear out over time. Pureit’s GKK (Germ Kill Kit) filters make maintenance simple. Smartsense indicators alert you 15 days before expiry, and if not replaced, the auto shut-off stops dispensing to ensure you never drink unsafe water.
Conclusion
Inside an RO water purifier, each stage plays a unique role in defending your health. From removing heavy metals to enriching your water with essential minerals, Pureit’s advanced systems — backed by the GKK filter assurance — ensure every sip is 100% safe and refreshing.
