4 ms·
N95 masks are complicated to fit properly. For it to work you need a proper seal. The CDC says there is no general sizing guideline and recommends that the fit
by iudqnolq 7y ago
N95 masks are complicated to fit properly. For it to work you need a proper seal. The CDC says there is no general sizing guideline and recommends that the fit be tested yearly. I'm unsure how to go about doing this as an inexperienced individual.