... mildew,long-lasting fragrance,natural ingredients and degradation,Eco-friendly LG Aerosol DispenserModel : S-12Spray Place: Hospital, School, Public-place, Home ... the machine gear upward push.3---Put 2 batterys, the battery holder by +, -, install batteries4---Put into spray nozzle(perfume), attention ... 2 meters away from the ground, avoid children to touch.... LG Aerosol Dispenser