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Which of the following devices provides the most protection against a contaminated environment?
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5 votes
Which of the following devices provides the most protection against a contaminated environment?

User Sandro Keil
by
6.3k points

2 Answers

6 votes

A. A full-faced air-purifying respirator

B. A half-face air-purifying respirator

C. A self-contained breathing apparatus

D. A quarter-face filtering dust mask

User NNsr
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6.4k points
2 votes
Is there multiple choice?
User DhineshYes
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5.8k points
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