HEPA Cool Formaldehyde purifier is engineered to provide high-quality filtration and powerful projection to support existing HVAC systems and provide cleaner, purified air throughout public spaces such as offices and schools. The whole machine meets HEPA H13 standards. The filter system captures 99.97 percent of particles as small as 0.3 microns. The machine automatically senses for pollutants, including particles, NO2, VOCs and formaldehyde. Once a pollution event is sensed, the machine ramps up to capture all the pollution and project purified air around the space.