Comparison of performance characteristics of dust respirators made in the United States and the United Kingdom.
D000336:Aerosols; D000388:Air; D003031:Coal; D004391:Dust; D005069:Evaluation Studies as Topic; D005374:Filtration; D006801:Humans; D008397:Masks; D008751:Methylene Blue; D011009:Pneumoconiosis / Q000517:prevention & control*; D011482:Protective Devices / Q000592:standards*; D012822:Silicon Dioxide; D012965:Sodium Chloride; D006113:United Kingdom; D014481:United States; D012122:Ventilators, Mechanical / Q000592:standards*
D000336:Aerosols; D003031:Coal; D004391:Dust; D012965:Sodium Chloride; D012822:Silicon Dioxide; D008751:Methylene Blue