Applicable scenarios: household use, power supply mode: USB, Noise: 36-45db, energy efficiency level: no energy efficiency level, suitable for people with allergies, smokers, pet households, preferred for mothers and infants, workplace and office, filter type: composite filter, control method: mechanical, air purifier air volume: 50 cubic meters/hour, applicable area: less than 10 square meters, function: eliminate odor, remove formaldehyde, installation method: no installation required, style: simple wind, ins wind, style: desktop, working principle: activated carbon, HEPA technology