1.Clean room air and remove smell of bathroom and toilet 2.Remove smell, prevent mildew and sterilize for icebox, bureau and shoe-ark, etc 3.Dishware? disinfect and sterilize 4.Keep vegetable and food fresh, and prevent decay 5.Sterilize the tap water, detoxification to fruit and vegetable 6.For aquarium used, to remove bacteria, increase oxygen and prevent pathological changes