Fangrui Product Details Fangrui Product Details Double -layer Design: The Double -layer Glass Fiber Material Is Used To Make A Spray Gun Filter To Increase The Filter Area, Achieve Higher Adsorption Ability And Better Filtering Effect, And Make Your Work Space More Secure. High -quality Materials: Our Spraying Room Filter Is Made Of High -quality Glass Fiber. It Is Soft, Not Easy To Deform, And Has A Longer Life. It Can Reduce The Frequency Of , Reduce Internal Cleaning Time And Maintenance Costs.appropriate Density Can Intercept And Purify Particles With Or Greater Than Pm2.5 To Ensure That The Indoor Air Is Fresh. Applicable Size: Our Filter Cotton Is 16 X 7-1/4 X 7/8 Inches (wide X High X Thick), Which Is Perfectly Matched With The Spray Room Filter.it Can Also Be Cut Into Other Sizes To Meet Various Needs. Compatibility: The Spraying Room Filter Is Compatible With Products Such As Master/paasche/sky Enterprise/airhobby; Please Confirm The Model Before Buying.our Filter Cotton Is Also Suitable For Aquarium Filtering, Fan Filtering And Ot