During an infection control training, what should be emphasized about the use of N95 masks?

The emphasis on the need for N95 masks to fit snugly is essential because a proper fit is critical in ensuring that the mask provides the intended level of filtration and protection against airborne pathogens. N95 masks are designed to filter out at least 95% of particles that are 0.3 microns in size and larger, but this efficacy can only be achieved if the mask forms a tight seal around the face.

A snug fit minimizes the risk of unfiltered air entering around the edges of the mask, which can happen if the mask is loose or improperly worn. This is particularly important in settings where there is a high risk of exposure to respiratory infections, such as during outbreaks or in healthcare environments.

Reusing N95 masks and their application only during surgical procedures would compromise their integrity and effectiveness, while wearing them is not intended to enhance communication, which can actually be impaired by their use. Thus, the critical takeaway during infection control training should be the importance of ensuring that N95 masks fit properly for them to be effective in protecting healthcare workers and patients alike.