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EN136 Full Face Masks This standard specifies the requirements for full face masks for use as part of a respiratory protective device. These facepieces may be used in negative pressure systems, powered or supplied air systems . There are three classes of Full Face Masks: Class 1 - LEGISLATION AND STANDARDSEN136 Full Face Masks This standard specifies the requirements for full face masks for use as part of a respiratory protective device. These facepieces may be used in negative pressure systems, powered or supplied air systems . There are three classes of Full Face Masks: Class 1 - KN100 Eu EN149 standard facemask in USA - Medical 3 Layers Eu EN149 standard face mask in Australia. export Eu EN149 standard mask USA. no odor Eu EN149 standard medical mask Australia. dust mask filter hiking activated carbon. high quality face mask for AS NZS 1716 2012 standard. good tightness grade D mouth muffle in Austria. export blue folded ce protective dust mask. wear comfortable grade C face mask The United States.. 3 Layers Eu EN149 neutral ph eu en149 standard facemask usa

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