... can sterilization except mildew,long-lasting fragrance,natural ingredients and degradation,Eco-friendly Automatic Aerosol DispenserModel : S-17 ... , Public-place, Home, Hotel, Meeting-room, Restaurant, Bank..and so on.. pls put them in place above 2 Meters ... Ocean; Anti-tobacco …..You can choose which smell you like.Setting ways:1--- Take Automatic Aerosol Dispenser, open and check whether switch is ...