Even the best mask when worn incorrectly leaves its user at risk. This step-by-step video demonstrates how to "don" (put on) and "doff" (take off) a surgical tie style medical face mask. *NOTE: Please ensure your hands are washed and clean before applying the mask, and always discard the used mask in accordance with your facility's policies and procedures. Looking for information on ASTM mask protection standards and information for use? Go to https://www.primed.ca/clinical-resources/astm-mask-protection-standards/ to find the answers you need about medical face masks and ASTM standards.