... Professional Manufacture 15 years experience 286 sets per hours air purifier ionizerCold catalyst,Anion,numeralAutomatic,Silent type ,Multifunction Voltage:ac220V ... Water for Drinking without Ozone Remaining *Using the device to device to treat tap water will remove bacteria,odor ... and bacteria grow easily in air tight room, especially in air-conditioning room.The device kills germs and bacteria and ...