Austin Air Bedroom Machine HM402

Room Size: Cleans up to 750 sq ft. Endorsed by the National Sleep Foundation, for those who desire a better night's sleep. Casters for easy movement. Available in black, white, sandstone, silver, or midnight blue. -----   The Bedroom Machine HM402 is Austin Air's best air cleaner and is endorsed by the National Sleep Foundation. It offers five filtration levels (more than any other Austin Air cleaner) by combining the 15 lbs of granular carbon in the standard HealthMate with the lightweight HEGA carbon cloth found in the Allergy Machine. 360° 5-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 four 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 life of the main fi