Austin Air HealthMate Air Purifier HM400 - Sandstone

Four stage filter provides complete spectrum of air cleaning, helping remove sub-micron particles, noxious gases and chemicals.
Stage 1: Large Particle Pre filter removes particles easily seen by the naked eye (e.g.dust, hair and pet dander)
Stage 2: Medium Particle Pre filter helps remove small to medium size particles (e.g.molds, spores and pollen)
Stage 3: About 15 lbs. of Activated Carbon and Zeolite. Helps removes chemicals, gases and odors.
Stage 4: 60 sq.ft.of Certified HEPA Removes 99.97 percent of all particles larger than 0.3 microns.