No one really knows the long term effects of wearing "cloth" face masks. As of late, there are many medical professionals who said they don't believe there are any findings of long term effects to the lungs, nasal passage, or eyes.
Physicians at Vanderbilt University Medical Center state that "Prolonged use of any face mask, including the N95 respirator, has not been shown to cause carbon dioxide toxicity or lack of adequate oxygen in healthy people. For some persons with severe chronic lung disease, wearing a mask may make breathing more difficult, but not because of CO2 retention."
However, because most of us including top pulmonary specialists have never been in a pandemic or studied the long term effects of wearing fabric on the face, no one knows
Face masks made of cloth of varying fibers have not been tested. While many people have turned to mask making, most are clueless about the origins of the fabrics they are using. They think because it is a "cotton" fabric it must be okay. But there is no research to show what breathing in elastane and synthetic fibers like polyester over a period of time does to the body. The jury is still out on this one.
For now, its best that everyone wear a disposable, preferably a BlacTec N95. The BlacTec N95 is the first 14 day wear disposable "reusable" surgical face mask. Not only is it the most effective disposable mask to fight COVID-19 on the market, you can actually talk and breathe!
For more information visit www.blactecfacemasks.com