Listening in. Voice communication plays an important part in the safety, well-being and productivity of those who work in permit-required confined spaces.
Ibbetson
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ConSpace Communications Ltd., Richmond, B.C., Canada.
D020378:Confined Spaces; D006804:Ergonomics / Q000379:methods / Q000592:standards; D006801:Humans; D016272:Occupational Health; D011845:Radio; D013060:Speech; D014481:United States; D014489:United States Occupational Safety and Health Administration