Three factors required for a respirator to be effective.

The graphic depicts the correct and incorrect ways to wear a respirator.

Bibliographic Details

Format:	Government Document Photo
Language:	English
Published:	[Washington, D.C.] : Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, [2017]
Subjects:	Breathing apparatus. Industrial hygiene. Instructional and educational works.
Online Access:	Available in PDF and JPG versions