title: Letter: Sidium chloride aerosol penetration of respirator filters.
mesh_terms: D000336:Aerosols; D000395:Air Pollutants, Occupational / Q000032:analysis; D004864:Equipment and Supplies; D005374:Filtration; D011482:Protective Devices; D012134:Respiratory Protective Devices; D012965:Sodium Chloride / Q000032:analysis*
chemical_list: D000336:Aerosols; D000395:Air Pollutants, Occupational; D012965:Sodium Chloride