Dyson: Dyson offers an air purifier that automatically cleans and heats a room and claims to capture 99.95% of harmful pollutants as small as 0.1 microns. Its trademarked Air Multiplier technology automatically senses pollution, captures ultrafine pollutants, and projects purified and heated air. The air purifiers function on three intelligent sensors that are powered to tackle PM 2.5, PM 10, VOCs, and NO2. The purifiers also have an in-built LCD screen to showroom temperature and the gases and particles detected. Two separate filters work simultaneously to project over 290 liters of smooth, purified air per second.
AirOk: Founded by a team of IIT Madras graduates, Air Ok has designed and developed a revolutionary combination of air purifiers with high efficacy and performance with a unique design and patented filter technology called EGAPA. Unlike other conventional air purifiers, the technology developed by Air Ok can remove particulate matter as well as acidic, alkaline and volatile gaseous pollutants. The filters remove up to 99.7% of harmful indoor air pollutants. The concentration of CO2 defined the quality of air in an occupied indoor space, and the EGAPA filters are made of special media that can absorb CO2 along with other acidic gases. This technology has wide range of applications especially in all mechanically ventilated indoor spaces where there is no provision for fresh air to enter.