Condition: 100% Brand New Shell Material: Plastic Power: 2W Noise: ≤ 10dB Application Area: 10-20m³ Formaldehyde Degradation Rate: 95.00% Negative Ion Density: > 4,000,000 pc/cm³ Air Flow: < 50 m³/h Size (L x W x H): 8 x 4.3 x 13.5 cm Cable Length: 1.2 m / 3.94 ft Weight: 314~342g 1. Release negative ions to create a cool and comfortable environment 2. Release negative ions to create a cool and comfortable environment 3. Built-in micro fan to promote the diffusion of negative ions 4. Compact and simple style, easy to carry, ideal for office use 5. Widely used in office, study, living room, bedroom to make you feel refreshed