Is wearing a mask safe?

Is wearing a mask safe?

Debate continues if wearing a mask has unintended consequences due to inhalation of exhaled carbon dioxide  and depleted oxygen. An academic paper from Otmar Geiss, European Commission, Joint Research Centre (JRC) in Italy sheds some nice insights.

Dr. Koz summarizes the key points from this academic paper:

  • Carbon dioxide inhalation increases when wearing a mask.
  • Fresh air contains 410ppm. Wearing a face mask, carbon dioxide level ranges from 2150 and 2875 ppm depending on the type of activity.
  • No differences were observed among the three types of tested face masks. 
  • Carbon Dioxide levels between 1,000 ppm and 10,000 ppm can cause undesirable symptoms such as fatigue, headache and loss of concentration.