9
Breathing apparatus in the nature of respiratory masks for non-medical purposes and respirators other than for artificial respiration and structural parts and fittings therefor; exhaust valves, gauges, tubes and hoses, air cylinder supports and harnesses in the nature of head and neck straps all adapted for use with breathing apparatus and for non-medical purposes; signal whistles; respiratory masks and protective face masks for non-medical purposes and for other than for artificial respiration
10
Breathing masks for medical or surgical use; breathing masks for antibacterial protection; breathing masks for toxic substance protection for the use by individuals concerned with pharmacy, mortuary or laboratory procedures; protective breathing masks for medical or veterinary purposes or both; respiratory masks for artificial respiration; air filter inserts and air filters for breathing masks and parts and fittings therefor, excluding inhalers for the treatment of respiratory diseases and disorders
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