Features It can be used to remove sterilize, and add oxygen in the space Applied to dryer, dishwasher, refrigerator, electronic shoe cabinet, air purifier and so on. Take advantage of high voltage, use dry air or oxygen in the air as raw material to produce O3. Eliminates odors, freshens stale air. This Ozone generator is portable, easy for professional DIY use. Low power consumption, so it will help you save power. Specification:Product category: air purifier Input voltage: AC220VPower: 55 w Rated frequency: 50 (HZ) Suitable area: 31- 40m² Noise: 20 (dB) Ozone tube size: 255*30mm/10*1.2in Power supply size:145*55*45mm/5.7*2.2*1.8inWeight: 463g/16.3oz Wiring method:1.The thin blue and red wire are respectively connected to AC 220V power supply (no need to distinguish"+," and"-" 2.The two thick red wire are respectively connected to two terminals( one is at the end and the other is on the tube), (no need to distinguish"+," and"-")Package list:1x Ozone tube1 x power supply Package List