1. 360-degree quick effect to improve air quality 2. Replaceable composite filter cotton can effectively filter dust particles, formaldehyde, viruses, etc. 3. Large area to filter out a variety of harmful substances in the air 4. Dual gravity DC motors with noise-reducing air ducts for silent operation 5. Material: PP, electronic components 6. Rated input: 5V 7. Working principle: activated carbon 8. Noise: below 36dB 9. Air volume: 50 cubic meters per hour 10. Power supply mode: USB connection power supply 11. Applicable area: 21-30 square meters 12. Product size: 9 x 9 x 16 cm
