After the professional fit test, workers must wear only the type and size mask approved by the fit tester. a. True
b. False

A. true

Explanation:

Tight-fitting respirators must seal to the wearer’s face in order to provide expected protection. This includes disposable respirators (also called “filtering facepieces”). Fit testing is required by Australian New Zealand Standard AS/NZS1715 before a user wears a respirator on the job, and should be assessed at least annually

i guess, eat something healthy then boom you good lol jk