Health officials in six Bay Area counties – Sonoma, Marin, San Francisco, San Mateo, Alameda, and Contra Costa – have issued orders mandating the use of face coverings in public areas like essential businesses, common spaces, and on public transit. The San Francisco, Alameda, San Mateo, and Sonoma county orders went into effect on April 17; however, enforcement of the San Francisco, Alameda, and San Mateo county orders will not begin until 8 a.m. on April 22, 2020. The Contra Costa and Marin county orders went into effect at 8 a.m. on April 20, 2020.
Acceptable face coverings
Under these orders, individuals should not purchase N95 or other factory-made masks in order to meet the requirements. Those masks should be reserved for health care workers. Instead, individuals should use any cloth, fabric, or other soft or permeable material, without holes, that covers only the nose and mouth and surrounding areas of the lower face – even if homemade. Examples of acceptable face coverings include a scarf or bandanna; a neck gaiter; a homemade covering made from a t-shirt, sweatshirt, or towel, held on with rubber bands or otherwise; or a mask, which need not be medical-grade.
Continue Reading Bay Area counties mandate face coverings for essential businesses and other public areas