SAN FRANCISCO (KGO) -- The omicron surge has caused the CDC to finally update its mask guidance late last week, indicating a clear preference for the level of protection offered by N95 and KN95 masks.

The Self-described “Mask Nerd” Aaron Collins, an aerosol scientist who tests masks in his home laboratory and rates their ability to filter out aerosol, joins Gayle Guyardo the host of the nationally ...

The Centers for Disease Control and Prevention (CDC) has changed its guidelines about masks and respirators a number of times over the past two years and gave its most recent update on January 14, ...

HOW TO GET ONE. MARYLAND'S 20 MILLION MASK DISTRIBUTION PLAN UNDWAYER AT THE STATE RUN COVID-19 TESTING SITE IN ANNAPOLIS ON FRIY.DA >> ONE OFY M CO-WORKERS TOLD ME SO I'M THANKFUL FOR THAT. KATE: ...