The Atrix ATIBCV Antimicrobial Class 100 Cleanroom HEPA Vacuum is a great option for cleanrooms, human and animal hospitals, nursing facilities, and in-home care. The ATIBCV HEPA vacuum has 4 levels of filtration and large capacity for prolonged use with its 6-gallon tank and large paper filter bag. The 4 levels of filtration consist of dual HEPA filters, one polyester filter, and one large paper bag filter. The primary HEPA filter catches dust and particles, while the secondary HEPA filter prevents the escape of dust and particles from carbon brushes. The ATIBCV Antimicrobial Class 100 HEPA vacuum, hose and green attachments are made from Microban antibacterial material to prevent proliferation of bacteria and viruses. It is a very powerful vacuum at 1,000-watts, super high speed, and used for deep cleaning. It includes a 25 foot power cord, weighs about 27 pounds, and generates around 64 decibels of noise, making it extra quiet for sound sensitive environments. An indicator light on the front of the vacuum informs you when the large paper bag is full and needs to be changed.