... ,household,office,hotel,kitchen,restaurant,medical,hospital,industrialProduct Accessory:Air pipe, Air stone, Wall mounted, Manual, Warranty cardMainly Functions:1 ... a key, the buzzer sound short.(6). During air sterilization and disinfection, there is no need of External ... .2. Mainly functions:(1). Produce drinking water(2). Air purification1) Removes foul smell: Removes harmful gases such as ...