Abatement Technologies HEPA CARE HC800CD Ceiling Mounted Air Filtration System Deodorizing Filters Filter Types: GAC Color: White Annual Filter Bundles Filter Types: GAC Color: White Length: 9 3 4" Max Temperature: 100°F Compatibility: For Taste & Odor™ Water Filter Cartridge Material: Polypropylene Barrier Diameter: 10 microns Features: It operates silently and continuously or every 2 years — whichever comes first Warranty 2 years — material and workmanship filter service life not included Best Suited For Patient isolation healthcare construction critical environment protection Replacement Filters & Accessories an OSHA accredited Nationally Recognized Testing Laboratory (NRTL)