Health officials and experts are increasingly saying it’s time to upgrade your face masks, especially in light of the Omicron surge. California’s public health director and health officer, Dr. Tomás ...

SAN FRANCISCO (KGO) -- University of San Francisco researcher and data scientist Jeremy Howard has been at the forefront of urging everyone to wear masks in public and urging lawmakers to mandate mask ...

LOS ANGELES — Health officials and experts are increasingly saying it’s time to upgrade your face masks, especially in light of the omicron surge. • N95 and KN95 face masks, respirators on sale as ...