Electrostatic cotton can absorb particulate matter pollutants such as: dust removal particles PM0.3 and so on 360° all-round interception 360° electrostatic electret, layer by layer filtration adsorption fine dust, PM2.5, hair and other suspended matter The effect is clear and effective to filter hair, dust, pm2.5, protect the blockage of filter element, and give full play to the effect of filter element Filter cotton effectively intercepts hair and other particles with low wind resistance, the purifier saves electricity and energy saving filter cotton is replaced at any time, and the filter element gives full play to the filter element and enhances filtration Multiple filtration, multi-in-one, can effectively filter PM2.5, , formaldehyde, , pollen, dust, second-hand smoke and other harmful substances Applicable scenes: air purifier/air conditioner/vent/window Colour:White Material:Static cotton Size: 675x286mm Package Contents: 30 x Purifier primary filter cotton (Not included Purifier ) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.