Two Countdown Timer Modes for Auto-turn Off and On in 1 Hour / 2 Hours Mode ... :AC100~240V 50/60 Hz,·Two countdown timer modes for auto-turn off and on in 1 hour / 2 hours ... Certificate(s): CE, RoHS, FDA.·Usage: Boat Cabins, Yacht Cabins, Auto, Bedroom, Living room, Cookroom, Hospital, Etc..·Filters: Cotton filtering ... Carbon: 3 to 6 months, Photocatalytic: 12 months.·MOQ: 500pcs. small air purifier