CleanAir Industrial Ozone Generator 4,000mg (4G) Air Cleaner Deodorizer Ionizer Purifier, with 60 Minute Timer and Hold Option Produces "4,000+ mg" (4G/Hr) Ozone per hour, 60 Minute timer and Hold Function. MACHINE MUST BE USED IN UNOCCUPIED (NO PETS or PEOPLE) ROOMS OR BUILDINGS ONLY! No filters to clean, The plates are really easy to pull out and clean, takes minutes. Includes a power adapter, an owners manual, and packaged in a safe foam box, Runs on 110v/60hz/70 watts. Ships UPS Ground. Warranty: LIFETIME OZONE PLATE WARRANTY, AND 2 YEAR MACHINE WARRANTY. WARRANTY COVERS PARTS ONLY.