Cal Osha Safety & Health Guide
“The mandatory use of cloth face covers, as required by the California Department of Public Health (CDPH) guidance, including:
“CDC guidelines that everyone should use cloth face covers when around other persons.
“Cloth face covers can help protect persons around the user of the cloth face cover when combined with physical distancing and frequent hand-washing.
“Cloth face covers are not protective equipment and do not protect the person wearing a cloth face cover from COVID-19.”