Study Masks Are Not Linked To Carbon Dioxide Over Exposure
Researchers behind the October study, published in the Annals of the American Thoracic Society, set out to determine whether or not there is a link between wearing a face mask and issues with gas exchange, which involves changes in oxygen or carbon dioxide levels. The researchers assessed both healthy individuals and veterans with severe chronic obstructive pulmonary disease, or COPD, before and after using surgical masks. People with COPD “must work harder to breathe, which can lead to shortness of breath and/or feeling tired,” according to an American Thoracic Society fact sheet about the condition....