Moldex 9400 supplies as a pair(2 x filters);No need for additional clips or holders, different gas and particulate filters can be combined.;EASYLOCK Filters for Series 7000 & 9000 masks.;Adapters or particulate pre-filters are not necessary.;EasyLock particulate filters can either be connected to the EasyLock gas cartridge or directly to t

• Box Moldex 9400 A1B1E1K1 Gas Filter-Filting and Cartridge for Mask 7000&9000 Series 5 Pairs

Box Moldex 9400 A1B1E1K1 Gas Filter-Filting and Cartridge for Mask 7000&9000 Series 5 PairsMOLDEX