Below are some related articles and website links that you may find informative and useful
About Noise and Hearing
About Face Protection
http://www.csagroup.org/
http://www.csse.org/
http://www.ansi.org/
http://www.asse.org/
http://www.ccohs.ca/
http://www.labour.gc.ca
http://www.worldsafety.org/
http://www.naosh.org/
http://www.wsps.ca/
http://epa.gov/
http://www.hellbergsafety.com
www.lynnvalleymfg.com/products/safety/
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