The cloth and surgical masks the CDC recommends do not effectively stop transmission, and can increase the chance of wearers getting sick.
N95 masks disturb O2/CO2 exchange, and pose a risk for elderly, pregnant women, and those with pre-existing conditions such as COPD, heart disease, etc.
Psychologically, mask wearing is anti-social. Social isolation leads to a decrease in antiviral compounds and an increase in inflammatory compounds.
Americans can say they have a health condition that prohibits them from wearing a mask, and the HIPPA law protects them from having to reveal why to anyone.
Mask topic starts at 13:00