Inward Leakage Variability between Respirator Fit Test Panels – Part I. Deterministic Approach
نویسندگان
چکیده
منابع مشابه
New respirator fit test panels representing the current Chinese civilian workers.
Respirator fit test panels provide an objective tool for selecting representative human test subjects based upon their facial characteristics for use in research, product development, testing and certification. Fit test panels were typically based upon anthropometric data such as the 1967-1968 survey of American military personnel. In this study, the objectives were to: (i) evaluate the applica...
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The UK Health Protection Agency advises health care workers caring for patients with probable or confirmed flu-like illnesses, with serious respiratory illnesses or where aerosol generating procedures are being undertaken to use a filtering face piece-3 (FFP3) respirator [1]. Whereas masks protect the environment from wearers, respirators by design protect wearers from the environment. Some sur...
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A respirator fit test panel (RFTP) with facial size distribution representative of intended users is essential to the evaluation of respirator fit for new models of respirators. In this study an anthropometric survey was conducted among youths representing respirator users in mid-Taiwan to characterize head-and-face dimensions key to RFTPs for application to small-to-medium facial features. The...
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A combination of local flow measurement techniques and fog flow visualization was used to determine the inward leakage for two tight-fitting powered air-purifying respirators (PAPRs), the 3M Breathe-Easy PAPR and the SE 400 breathing demand PAPR. The PAPRs were mounted on a breathing machine head form, and flows were measured from the blower and into the breathing machine. Both respirators leak...
متن کاملThe effect of gender and respirator brand on the association of respirator fit with facial dimensions.
This study examined the association of facial dimensions with respirator fit considering the effect of gender and respirator brand. Forty-one subjects (20 white females and 21 white males) participated in the study. Each subject was measured for 12 facial dimensions using anthropometric sliding and spreading calipers and a steel measuring tape. Three quantitative fit tests were conducted with t...
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ژورنال
عنوان ژورنال: Journal of Occupational and Environmental Hygiene
سال: 2015
ISSN: 1545-9624,1545-9632
DOI: 10.1080/15459624.2015.1047025