Results 151 to 160 of about 42,616 (196)
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THERMAL DISCOMFORT OF RESPIRATORY PROTECTIVE DEVICES
American Industrial Hygiene Association Journal, 1990Respiratory protective devices which would protect the wearer against noxious material and gases are not worn in many of the appropriate circumstances. They have been said to feel uncomfortable and hot. In the present study, six men and six women in a 25 degrees C room reported on facial discomfort, thermal sensation, and sweating while wearing three ...
A B, DuBois, Z F, Harb, S H, Fox
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Analytical Modeling of Respiratory Protective Devices
American Industrial Hygiene Association Journal, 1971An analytical description of a generalized respiratory protective device is developed by representing the physical system as an equivalent electrical circuit. As a first step, a system of nomenclature is presented which divides the generalized respiratory protective device into several subsystems, and identifies the possible individual components in ...
L, Silver +5 more
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Minimum protection factors for respiratory protective devices for firefighters
American Industrial Hygiene Association Journal, 1977Carbon monoxide and oxygen concentrations were measured in seventy-two structural fires using a personal air sampler carried by working firefighters. In a total sampling time of 1329 minutes the carbon monoxide concentration exceeded 500 ppm approximately 29 percent of the time. The maximum carbon monoxide concentration was 27,000 ppm and in 10 percent
W A, Burgess +4 more
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Respiratory protection devices
American Journal of Infection Control, 1995OSHA authority and responsibility have led to the requirement that health care workers potentially exposed to patients with active tuberculosis in situations where engineering controls are not feasible for protection must utilize personal protective equipment at least equivalent to HEPA respirators.
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A new respiratory protective device
American Industrial Hygiene Association Journal, 1980This paper describes a new respiratory protective device for use in dangerous environments. The new system provides a lightweight alternative to present compressed air systems and a safe alternative to present pure oxygen respirator systems. The new system utilizes electronically controlled valves, two breathing bags, and a small, compressed supply of ...
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Individual Factors in the Choice of Respiratory Protective Devices
AIHAJ, 1985Federal regulations recognize the need to determine whether individuals are physically able to perform their job while wearing respirators. A variety of safety and workplace factors should also be considered at the time that a respiratory protective device is evaluated for use by a particular worker.
W S, Beckett, C E, Billings
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Speech Transmission through Respiratory Protective Devices
American Industrial Hygiene Association Journal, 1961Abstract The articulation index, or measure of the intelligibility of the spoken word, has been determined for 15 respiratory protective devices in common use. These values have significance in the ability to communicate when wearing respiratory protection.
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