Guide to Hearing Protection is a 20-p resource on products, definitions, and general information about hearing protection.
Guide to Hearing Protection is a 20-p resource on products, definitions, and general information about hearing protection. A handy illustration provides a comparative analysis of dB for a variety of everyday noises, such as lawn mowers, jet engines, and hair dryers.
Howard Leight Hearing Protection
www.howardleight.com
Circle 332
