Standard and Transmission-Based Precautions · CDA

A surgical mask should be replaced when:

  1. It becomes damp or soiled
  2. It is worn for less than one hour
  3. It is worn under a face shield
  4. It feels uncomfortable
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Correct answer: It becomes damp or soiled

A damp mask loses filtration efficiency. Replacing it ensures adequate protection.

Difficulty: Medium Question 8 of 20

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