Austin Air HealthMate Plus HM450

Room Size: Cleans up to 750 sq ft. Specially designed for additional adsorption of VOC chemicals such as formaldehyde and ammonia. Casters for easy movement. Available in black, white, sandstone, silver, or midnight blue. -----   The HealthMate Plus HM450 is identical to the standard HealthMate, but the carbon in the filter is impregnated with a special blend of potassium iodide for additional adsorption of VOC chemicals such as formaldehyde and ammonia. This "SuperBlend" of carbon is the only difference between the HealthMate Plus and the HealthMate.  360° 4-Stage Filtering System: The Austin Air 360° design draws air into all sides of the air purifier, passing it first through an outer pre-filter and then a main filter that combines three additional stages of filtration: STAGE 1: Large Particle PermaFilt Pre-Filter (wraps around main filter)Cleanable re-usable prefilter traps large particles easily seen by the naked eye (dust, hair, lint, pet dander, etc) while prolonging the lif