Features: 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. It is used in the pre-filter of the finished purifier filter to effectively increase the service life of the original filter, so that the filter of your home can truly reach the service life marked by the manufacturer. Suitable for: air purifier 2 / 1 , or other brands of air purifier, air conditioning dust, central air conditioning inlet, for windows, dust, anti-fog, etc. Filter Cotton only, other accessories demo in the picture is not included! Specification: Material: Cotton Dimensions: 66.5x30cm/26.18x11.81inch Color: White Quantity: 1 Pc Note: 1.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1 x Electrostatic Filter Cotton (without retail package) Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store