Product Name:HEPA air purifier in addition to pm2.5 dust net electrostatic electret cotton Electrostatic electret filter using 3D acupuncture process,less wind resistance,cleanability.Effectively extend the filter life of three to five times.The size of the product for all types of air purifier HEPA filter,applicable to all types of air-conditioning on-hook car filter.Millet,,Brussels,,and so on. Can effectively extend the life of the for air purifier 2/1/Other of air purifier,air conditioning dust,central air conditioning inlet,windows,dust,anti-fog,etc. Color:picture color Material:fiberglass Size:70*30cm Package Contents: 10* Air Purifier Parts Only the above package content, other products are not included. Note: Light 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.