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In 2004 - Yokohama, Japan 1454 downloads
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Standards Development Efforts for Powered Air Purifying Respirators and Closed-Circuit Breathing Apparatus Used to Protect Emergency Responders against Chemical, Biological, Radiological and Nuclear Agents
John G. Kovac
ational Institute for Occupational Safety and Health (NIOSH), National Personal Protective Technology Laboratory (NPPTL) , Centers for Disease Control and Prevention. U.S. Department of Health and Human Services