The Difference Between Respirators and Surgical Masks

(Us Department of Labor Video 2009, December 16)

http://www.osha.gov/video/20091216-respirator-2-english-high.wmv

Respirator Safety: Donning and Doffing and User Seal Checks

(US Department of Labor video, 2009, December 16)

http://www.youtube.com/watch?v=Tzpz5fko-fg&feature=relmfu