The Oxy-Hemoglobin disassociation curve demonstrates that as CO2 levels elevate metabolic processes are quickly impacted. For most this results in Respiratory Acidosis and respiratory failure. Wearing these useless (for virus) masks is a complete futility and unhealthy. They should be banned straight forth for the Public. N95 masks if not properly fitted, that is, tested before use for the individual are equally valueless.
An N95 mask is a death sentence.
It’s like having a gorilla paw over your face.