44 Has anyone ever used this to fight mask mandates at work? “In the preamble to the final Respiratory Protection Standard, OSHA discussed extensively its rationale for requiring that employees breathe air consisting of at least 19.5 percent oxygen.” (www.osha.gov) posted 3 years ago by cody17 3 years ago by cody17 +44 / -0 5 comments share 5 comments share save hide report block hide replies
masks are emergency use authorized for use regarding convid. Emergency use authorized = must be optional.