. Author manuscript; available in PMC: 2021 May 21.

Published in final edited form as: Clin Infect Dis. 2021 Jul 15;73(Suppl 1):S98–S105. doi: 10.1093/cid/ciab320

Table 2:

Selected questions asked and answered during webinar sessions, May 14-August 6, 2020

Topic	Examples of Questions Asked	Provided Answers
Personal Protective Equipment	What type of medical mask? N95, FFP1, 2, or 3?	Medical masks are different from respirators. Per WHO guidance, respirators (N95, FFP2, FFP3) are used for aerosol-generating procedures.
Personal Protective Equipment	How long can we use N95 respirators?	N95 respirators are manufactured as single use. In situations where PPE supplies are running low, you can consider contingency and crisis capacities for respirators. This includes limited re-use. You can read more on the CDC COVID-19 web page for respirator strategies.
Environmental Cleaning	Any recommendations for disinfection tunnels at hospital entrances?	Disinfection tunnels are not recommended under any circumstances. Disinfectants should never be applied to humans, as they can be harmful.
	Do we need to clean surfaces, such as floors, before disinfecting with hypochlorite?	Yes, cleaning should be conducted prior to disinfection to remove organic material which may reduce the effectiveness of hypochlorite
	Can you mix detergent with bleach?	No. Depending on the type of chemicals in the detergent, this can create a toxic product. It might also interfere with the efficacy of the chlorine.