Washed cotton primary air filters are mainly used to filter dust particles of 5~10 microns and above in the air, suitable for primary or intermediate air filtration in central air conditioning systems and clean air conditioning systems.

I. Material composition: aluminum alloy frame, galvanized iron wire parent-child support frame, filter material is high-quality durable washable primary air filter cotton that can be washed multiple times. The filter cotton is available in white.

II. Product features:

1. Can be washed multiple times and reused.

2. Long service life.

3. Low resistance, large filtration area, high air volume.

4. Common thicknesses include 46mm, 69mm, 80mm, 90mm, 96mm, etc.