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Other individual respirator hose) are not required by NIOSH to be marked with a NIOSH emblem. For quality control purposes, NIOSH requires that each respirator, respirator component, and respirator container be labeled distinctly to show the lot number, serial number, or approximate date of manufacture of the component (§84.33[g]).Respiratory Protection GuidelinesFree essays, homework help, flashcards, research papers, book reports, term papers, history, science, politics

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