Product dimensions: 79.5*50.5*21.2mm
Installation : Portable
Input voltage : 3.7V DC (Battery); 5V DC (USB)
Power consumption : ≤ 0.5 w
Negative ion concentration : 5,000,000pcs/cm3
Net weight : about 30 g
Charging Time : 1 hour
Battery Life : 10hours
Certifications : CE, RoHS, Fcc
Protect Againest Particle Matters Includung : PM2.5 , pollen , smoke / dust
Bacteris Remobal Rate up to 93.38%