... 1 hour / 2 hours mode.·Certificate(s): CE, RoHS, FDA.·Usage: Boat Cabins, Yacht Cabins, Auto, Bedroom, Living room, Cookroom, Hospital ... (20,000 Hour Life) Based on 5 hours per day usage UV lamp will last approximately 8 to 10 Years).·Filters Life ... : Depending upon usage, Cotton filtering, HEPA and Carbon: 3 to 6 months, Photocatalytic ...