[Anti-dust masks].
RAYMOND
D004391:Dust; D006801:Humans; D007221:Industry; D008397:Masks; D009784:Occupational Diseases; D009790:Occupations; D011009:Pneumoconiosis
D004391:Dust
DUST; INDUSTRY AND OCCUPATIONS; MASKS; PNEUMOCONIOSIS
Les masques anti-poussières.