?High Quality Material?--The respirator mask filter wadding is made of high quality cotton and safe non-woven fabric with a large filter area, which ensures high air permeability and low breathing resistance, resulting in even breathing. The set is suitable for compatible filters 6000, 6200, 7502, 6800, 7501, FF402. ?Safety Protection 5N11CN?--Particulate filters can be used in conjunction with plug-in filters. Cotton filters have a P2 filter system that provides targeted protection against dust masks, respiratory protection, fine dust, organic gases and odours and filters at least 95% of particles in the air. ?Easy to Carry?--The gas mask cotton filters are small and easy to carry. The kit contains a total of 50 cotton filters that can be replaced immediately at the end of the service life of your original dust mask cartridge, so you can wear a dust mask with optimal filtration for the health of your respiratory tract. ?Wide Range of Applications?--Dust mask cotton filter can effectively filter particles and organic or respirator gases such as (nitron) benzene, aniline, tetrachloroethene etc. Cotton filters are the best choice for respirator mask painters, maintenance, cleaning, polishing, welding, cutting, spray paint and grinding work with dust particles and are suitable for automotive, construction, woodworking, chemical, experimental, agricultural and other industries. ?Note?--A protection period of 8 hours is a reasonable expectation for any paint mask with filter. If you feel significant resistance when breathing or if the dust filter is dirty or damaged, the cartridge must be replaced in a safe place (the filter wool is not washable). The filter wool is not suitable for use in environments with oxygen concentration below 19.5%. Product description