PORTABLE HEPA AIR PURIFIERS ROOM BY ROOM, CREATE A HEALTHIER BUILDING Honeywell portable air purifiers offer a simple solution to help clean the air. Our purifiers allow buildings to have extra filtration support within each room. The certified HEPA filter captures harmful particles (dust, pollen, pet dander, dust mite debris and smoke) and also reduces up to 99.9% of certain bacteria, mold spores and viruses.1,2 HEPA filters capture particulates of 0.