Austin Air B450C1 HealthMate Plus Standard Air Purifier, WhiteSpecializes in the reduction of harmful chemicals, noxious gases, VOCs, formaldehyde, and sub micron particles for individuals in the most contaminated of settings Broad spectrum adsorption offers protection for people exposed to smoke from wildfires, those living close to busy highways, and people with sensitivity to certain chemicals and gases found in the home True medical grade HEPA filter removes 99. 97% of all particles larger than 0. 3 microns;