Businesses, employers and event organisers may wish to request requiring their staff, visitors and customers to wear a face covering when on their premises, even though they are not legally required.
Gall busnesau a lleoliadau eraill hefyd ddewis gofyn i'w staff neu eu cwsmeriaid wisgo gorchudd wyneb pan fyddant ar eu safle, er nad oes eu hangen yn gyfreithiol arnynt.