【Name】 Foam sponge, biochemical cotton, black sound absorption filter 【Color: black, white 【Size】 2m * 1m (other sizes can be customized) [Aperture] 30PPI 35PPI 40PPI 45PPI 50PPI 60PPI (The larger the value of PPI, the smaller the aperture.) If you do n’t know how much aperture you need, please contact customer service! [Main application] 1. Used for dust filter and sound absorption of air compressor, fan, sound box and electronic products, as well as the filter layer of air conditioner and vehicle air filter, aquarium, etc .; 2. Biochemical filtration: It can be used to replace the filter cotton such as external filters, upper filters, and built-in filters. The size can be freely cut according to requirements, and the grass tank, fresh water tank, and sea water tank are common. [Features] Super large amount, moderate material density, uniform thickness, non-clogging and non-deformation, can be taken out and reused after cleaning the filter. Other colors can be customized, and the size is cut according to its requirements.
