The Challenge is a three-phase, $350,000 competition aimed at improving respirator fit evaluation. It seeks practical solutions that deliver real-time information on filtering facepiece respirator fit.
The Challenge is a three-phase, $350,000 competition aimed at improving respirator fit evaluation. It seeks practical solutions that deliver real-time information on filtering facepiece respirator fit.
The Centers for Disease Control and Prevention on Friday, January 14, 2022 updated its guidance on masks for the general public, now saying that people "may choose" to wear N95 and KN95 masks because they offer the best protection against Covid-19.
