Include:
1 x HEPA Filter
2 x Activated Carbon Filter
 
Hepa filter helps remove up to 99.97 percent of airborne particles as small as 0.3 micronsUsage:remove PM2.5 particles, viruses, allergic source and small dust particlesformaldehyde, VOCefficiently.
 
Activated carbon filter:
Structure: Honeycomb design. Reduce wind resistance, increase effective filtration area, improve formaldehyde, VOC purification efficiency.