Breathing with face mask does not alter oxygen level; virus can last 9 hours on skin

The following is a roundup of some of the latest scientific studies on the novel coronavirus and efforts to find treatments and vaccines for COVID-19, the illness caused by the virus.
abc13

Here's what happens to oxygen levels when you wear a mask

DUBLIN, Ireland -- A doctor based in Dublin, Ireland, has debunked the idea that a face mask lowers oxygen levels. In fact, he's shown that even wearing several has no effect. This video shows Maitiu ...
Medical News Today

Face masks have negligible negative effect on CO2 and O2 levels

A new study suggests that face masks have a negligible negative effect on the levels of carbon dioxide and oxygen that a person breathes. All data and statistics are based on publicly available data ...
koaa

ICU doctor runs 22 miles in mask to show face coverings don't hinder oxygen levels

BRADFORD, England – An intensive care unit doctor in England ran about 22 miles in a mask to show people that face coverings won’t hinder their oxygen levels. Dr. Tom Lawton says he was upset about ...