Preliminary report on surgical mask induced deoxygenation during major surgery Face mask side effects include lowered oxygen levels This study proved that surgeons that wore a mask in surgery for an hour + had significant reductions in blood oxygen saturation. This is relevant because most of us are being made to wear face masks at work for the whole shift, long journeys on public transport, and when we are in a public places doing shopping etc. and this requires aREAD MORE…READ MORE…