There are a lot of advantages to living in a world where information is easily accessible through websites and social media, but there can also be drawbacks when individuals can post misinformation without scientific proof.
Such is the case in the recent articles circulating online claiming that wearing a face mask can cause carbon dioxide (CO2) intoxication or oxygen deficiency - but that is not the case. According to the World Health Organization (WHO), the Centers for Disease Control and Prevention (CDC) and other legitimate health care organizations, prolonged use of any face mask has not been shown to cause CO2 toxicity or lack of oxygen in healthy people.
There are certain conditions such as chronic lung disease in which wearing a mask may make breathing more difficult, but not because of CO2 retention.
Check with reliable sources
It's easy to confused when you come across something that looks like a news article, so your best bet is to always check the validity of the information by visiting the CDC website to confirm whether or not the information is true.
Helpful link for ID/DD community
If you need help explaining wearing a mask to individuals with intellectual or developmental disabilities, you may find this video helpful. It was published to YouTube by the University of Cincinnati and features Meg Stone-Heaberlin, a licensed clinical psychologist.