Sealey AP3 R Filter Cartridge Pack of 2 9004AP3 R Filter Cartridge provides protection against non toxic and moderately toxic solid water based aerosols. Suitable for use with the Sealey 9000 half face mask. Conforms to EN143: 2000+A1: 2006. Protects against dust, smoke and mist up to 50 x OEL. Contains an active carbon layer. FILTER AP3 R Filter Cartridge provides protection against non toxic and moderately toxic solid water based aerosols. BAYONET FITTING Suitable for use with the Sealey 9000