Face Masks Lead to Breathing Dangerous Levels of Carbon Dioxide Even When Sitting Still, Study Finds
BY WILL JONES 13 MAY 2022 7:00 AM Wearing a face mask results in exposure to dangerous concentrations of carbon dioxide in inhaled air, even when the mask is worn for just five minutes when sitting still, a study has found. With surgical masks, the CO2 concentration of inhaled air exceeded the danger zone of 5,000 ppm in 40% … Read more