|As mask-wearing becomes increasingly mandated to wear a masks in stores, communities and certain states, complaints about breathing difficulties have spiked, and some are trying to use this as an excuse not to wear a mask.|
In short the answer is NO. wearing a masks does not affect you oxygen intake nor increases carbon dioxide levels.
Masks are one of our best lines of defence against the spread of COVID-19—not to protect ourselves from catching the virus, but to prevent us from giving it to others.
Even though some droplets may still spread out, wearing a mask could reduce the amount, providing a benefit to others. Research shows people don’t get as sick when exposed to smaller amounts of virus, said Dr. Monica Gandhi, a virus expert at University of California, San Francisco.