Effects of Respirators on Worker Efficiency 

Ron Cardarelli

CN Associates Inc., 249 Ayer Road, Suite 205 Harvard, MA 01451, USA

Intelligibility of Speech Through Personal Respirators Used During Bronchoscopy 

Ron Cardarelli, O. Schaefer

CN Associates Inc., 249 Ayer Road, Suite 205 Harvard, MA 01451, USA

Overview of the Canadian Standards Association (CSA) Standards Development Activities 

Ron Myers

CSA International

CSA International, 178 Rexdale Boulevard, Etobicoke, Ontario M9W 1R3, Canada

Respirator User Seal Checks: Use, Limitations, and Defining a Standard Method 

Roy T. McKay,  A. G. Freeman, C. L. Hall, L. J. Delaney, J. C. Bradley

University of Cincinnati, Department of Environmental Health, P.O. Box 670458 Cincinnati, Ohio 45267-0458, USA

Workplace Performance of a Supplied Air Hood During Aircraft Priming 

T. J. Nelson, T. J. Wheeler, T. S. Mustard

NIHS Inc., 2401 East Mall, Ardentown, DE 19180, USA

Ventilatory Responses to Carbon Dioxide during Moderate Exercise 

Takahashi Masayoshi

National Institute for Resources and Environment, 16-3 Onogawa, Tukuba Ibaraki 305-8569, Japan

NIOSH SCSR Certification Program

Timothy R. Merinar, S. L. Terry

Respirator Branch / Division of Respiratory, Disease Studies National Institute for Occupational Safety and Health, 1095 Willowdale Road, Morgantown, WV 26505-2888, USA

Update on CSA Respirator Standards Development Activities 

Tomislav Mehes

850 Marlborough Drive,Sudbury, ON P3A 3E9, Canada

Present and Future Challenge Aerosols for Dust Respirator Certification in Japan 

Toshihiko Myojo, M. Sugimoto

National Institute of Industrial Health

Symptoms of Victims Suffered From Sarin Nerve Gas Attack on the Tokyo Subway System 

Y. Ogawa, H. Shimizu, Y. Yamamura, H. Ando

Nat. Inst. Ind. Health, Kawasaki 214, Japan 

Terrorism in the Twenty- First Century: Threats and Responses 

Yonah Alexander

Director, Terrorism Studies Program, George Washington University, 2121 Eye Street, NW Washington, DC 20052, USA

Performance of Air-Purifying Respirators Against Chemical Warfare and Tear Gas Agents 

Z. N. Frund, J.W. Cobes, J. Milius

Mine Safety Appliance Company, P.O. Box 439 Pittsburgh, PA 15230, USA

The Effect of Ambient Concentration and Exercise on PortaCount Quantitative Fit Factors 

Ziqing  Zhuang, C. C. Coffey, W. R. Myers, D. L. McMullin, P. L. Jensen

National Institute for Occupational Safety and Health Mail, Stop H-117, 1095 Willowdale Road, Morgantown, WV 26505-2888, USA

Comparison of the Companion and Modified PortaCount Methods for Fit Testing N95 Respirators 

Ziqing Zhuang, C. C. Coffey, D. L. Campbell, W. R. Myers

Shigematsu, Works Company, Ltd., 267 Yashica Iwatsuki 339- 0046, Japan