This is the most advanced filtering system that Austin has ever designed. It has been built to meet the requirements set out by the John Hopkins University Medical School for ongoing studies where this new filtering system must captures gasses and particles at the nano size level. For people who desire a better quality sleep. The Bedroom Machine combines proven filter technology to provide a safe and effective solution to enhanced sleep. Every minute, over 250 cubic feet of air passes through 15 pounds of Activated Carbon, over 60 square feet of True Medical Grade HEPA and HEGA Carbon Cloth, providing air so clean it could change your life and how you sleep. If it doesn’t, Austin Air will refund your money within 30 days. 360 Progressive Filtering System The Bedroom Machine addresses the complete spectrum of air cleaning, removing sub-micron particles, noxious gases and chemicals. Austin Air’s 360-degree intake system draws air into all sides of the The Bedroom Machine, passing it through a 5-stage filter. The result, more clean air delivered faster and more efficiently than any other air cleaner on the market. 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 * Removes small to medium size particles (e.g. molds, spores and pollen) STAGE 3 – 15 lbs. of Proprietary Carbon Blend * Removes chemicals, gases and odors (e.g. sulfuric acid and ammonia) STAGE 4 – 60 sq. ft. of Certified HEPA * Removes 99.97% of all particles larger than 0.3 microns STAGE 5 – HEGA Carbon Cloth * High Efficiency Gas Arrestance.