face masks compulsory

aid background care carer carers caution compulsory coronavirus covid covid19 critical crucial equipment face facial forced front frontline have health healthcare help illustration imperative importance important key keyworker keyworkers law legal line mandatory mask medical must musthave note nurse nurses nursing obligatory personal ppe precaution precautionary professional protect protecting protection protective red required requirement risk risks risky rubber safe safety shortage sign stamp stamped stamping stamps symbol tools urgency urgent vital warning wear wearing white worker