Features: 1) Can freshen the air 2) Widely used in the air conditioning room, office, recreation area, home, hotel room, etc. 3) Makes people in a nature environment 4) Low noise design 5) Effective working scope: 20-30m 6) Power: 20W Packing: 12pcs/box Conveyance: Qty/20\'\' FCL: 3,972pcs Qty/40\'\' FCL: 8,004pcs