After seeing people were not adhering to her recommendation two weeks ago, Sonoma County’s top public health official on Monday made clear everyone must wear a face covering starting Friday when they go inside any building other than home, or when outside if unable to remain at least six feet away from others.

Dr. Sundari Mase, the county’s health officer, said residents can use a scarf or bandanna to cover their faces. She urged people not to buy N95 respirator or surgical masks, because health care workers are “in dire need for” them.

“These facial coverings are meant to protect the public from you,” Mase said during a live Facebook video briefing. “You’re not protecting yourself from coronavirus. What you’re doing is ensuring that if you had coronavirus but you are asymptomatic, you’re not giving it to other people.”