Low blood oxygen levels are treated with oxygen therapy, which involves delivering oxygen through a face mask, nose tubes, or endotracheal tube, which is inserted into your windpipe (aka trachea).

Does wearing a mask cause a drop in blood oxygen levels? No. Doctors wear masks for very long periods of time, even all day, in lots of cases. Masks are designed to be breathable, and there's no ...

Participants wore oxygen masks in three beard conditions: clean-shaven, short beards under about 0.4 inches in length, and ...

A team of scientists with the Sea Mammal Research Unit, School of Biology, University of St Andrews, in the U.K. has found that gray seals are able to monitor their blood oxygen levels as a means ...

A recent study has provided strong evidence that beards do not interfere with the effectiveness of oxygen masks for airline ...