Early effect of air filtration cotton AKA: coarse filter cotton, cotton outlet, the inlet cotton Category: washable and disposable type (ie plastic and non-gel type) Material: Polyester Colour: white or blue-white color temperature : ≤100 ℃ structure: a sheet or web filtering accuracy: ≥5μ features: reusable, washable, low initial resistance, flexibility, and cost-effective, simple and quick replacement. Uses: general air conditioning or air ventilation systems coarse dust filter, namely the pre-filter. Early effect of air filtration cotton common places: central air conditioning, spray systems, air supply system, subway, trains, stations and other ventilation systems at the pre-filter. Early effect of air filtration cotton Note: 1: early effect of air filtration cotton belong to the pre-filter, so must ensure that replacement frequency, in order to ensure the life of the filter material behind. 2: If you use spaces more dust particles at high frequency of use, the rubber must have the choice of the early effect filter cotton, washable 2-3 times and cost savings. Early effect of air filtration cotton Regular size: Width: 1 / 2M Length: 20M Thickness: 10mm / 15mm / 20mm Weight: 120-200g conventional weight colors: white, blue and white