CDC mask guidance: Masks with valves don't prevent coronavirus spread

Another good example of why government mask mandates are a masquerade! Here is another example!

In principle, it should be largely left to the individuals to decide whether he or she wears a mask or not with some exceptions!

"In guidance updated late last week, the Centers for Disease Control and Prevention warned against wearing masks with exhalation valves or vents, a type of face covering made for hot and dusty construction work that has become a popular pandemic accessory because of its seemingly high-tech design."

CDC mask guidance: Masks with valves don't prevent coronavirus spread - The Washington Post