RO Water Purifier

RO (Reverse Osmosis) water purifier uses a semi-permeable membrane and pressure to remove dissolved solids, chemicals, bacteria, and other contaminants, providing very pure water but also stripping beneficial minerals like calcium and magnesium, so many modern systems add stages to reintroduce them or control TDS (Total Dissolved Solids) for healthier drinking water, often featuring multiple filters (pre-filter, carbon, RO membrane, post-carbon) and available as under-sink, countertop, or dispenser models.