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User response to single use respirator expiratory valve.

Authors
Harber-P; Beck-J
Source
NIOSH 1992 Jan :1-16
Link
NIOSHTIC No.
20023890
Abstract
A number of volunteers participated in a study investigating the physiologic and subjective effects of single use (disposable) respirators during moderate exercise on a calibrated field course. Measurements were made non-invasively using respiratory inductive plathesmography, and subjective responses were evaluated with visual analysis scales. The presence of an expiratory valve on the respirator did not appear to have any measurable significant effect on physiologic response or on subjective response. For comparison, self-contained breathing apparatus affects were studied and were significant both physiologically and subjectively. This study suggests routine inquiry about subjective effects of single use disposable respirators is advisable, but that reliance upon physiological testing alone may be misleading.
Keywords
Respirators; Respiratory-protective-equipment; Personal-protective-equipment; Physiological-effects; Physiological-response; Physiological-testing; Laboratory-testing; Excretion; Pulmonary-function-tests; Self-contained-breathing-apparatus; Plethysmographs; Face-masks
Contact
University of California, Department of Medicine, Occupational Medicine Branch, Los Angeles, CA 90024-7027
CAS No.
7782-44-7; 124-38-9
Publication Date
19920127
Document Type
Final Grant Report
Funding Amount
573602
Funding Type
Grant
Fiscal Year
1992
NTIS Accession No.
NTIS Price
Identifying No.
Grant-Number-R01-OH-02005
NIOSH Division
OEP
Priority Area
Respirator Research
Source Name
National Institute for Occupational Safety and Health
State
CA
Performing Organization
University of California, Department of Medicine, Occupational Medicine Branch, Los Angeles, California
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