OSHA halts mask use in Postal Service: “On the advice of health officials at the federal Centers for Disease Control and Prevention (CDC) in Atlanta, the Postal Service bought 4.8 million of the spore-proof masks for its workers who handle mail and began offering workers the masks last week.

But according to OSHA officials and regulations, the workers must undergo hours of training and pass a “fit test” before they can be allowed to use the protective masks, which are like those worn by construction workers who install drywall and can be purchased at hardware stores.” Washington Times