Voltage: AC220V/50Hz Power: 30-60W weight: 7.4kg Anion Density: 1*106pcs/cm3 Ozone density: 300m3/h Noise: ≤32db Size:526*409*424mm Area: 75-100m2 Usage: office, meeting room, household Package: 1 pc/carton ozone generatorKJH-300 Functions: 1. High Efficiency Filter Material of Formaldehyde Absorbent & Reformed Active Carbon Filter: Decompose some poisonous gas such as formaldehyde, benzene, and xylene. The decomposing capacity is 30 times higher than other purifiers. 2. Operating with lowest noise: Using the PG engine with 4 modes, Ozone density can reach 300m3/h; in the sleep mode, the noise is below 32db. 3. Decompose pollen: Circular air with 5-minute low speed and 5-minute middle speed in order to decompose pollen clearly. 4. Release negative ion &Perfume function: The air was saturated with the perfume like the flowers. 5. Colorful appearance options