Inward leakage in tight-fitting PAPRs

Johnson, Arthur T.; Koh FC; Rehak TE

i

Inward leakage in tight-fitting PAPRs

Public Domain

2011/03/16
By Johnson, Arthur T. ; Koh FC ; Rehak TE

Details

Personal Author:

Johnson, Arthur T. ; Koh FC ; Rehak TE
Description:

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 leaked a little at the beginning of inhalation, probably through their exhalation valves. In both cases, the leakage was not enough for fog to appear at the mouth of the head form. [Description provided by NIOSH]
Subjects:

Laboratories Occupational Health Personal Protective Equipment Respiratory Protective Devices Respiratory System Safety
Keywords:

Air-purifying-respirators Analytical-processes Equipment-design Equipment-reliability Inhalation-studies Laboratory-testing Personal-protective-equipment Protective-equipment Protective-measures Qualitative-analysis Respiratory-protective-equipment Statistical-analysis
ISSN:

1687-9805
Document Type:

Text
Genre:

Journal Article
Place as Subject:

Maryland ; OSHA Region 3 ; Pennsylvania
CIO:

National Institute for Occupational Safety and Health (NIOSH)
Division:

NPPTL - National Personal Protective Technology Laboratory
Topic:

Workplace Safety & Health
Location:

North America
Volume:

2011
NIOSHTIC Number:

nn:20038923
Citation:

J Environ Public Health 2011 Mar; 2011:473143
Contact Point Address:

Arthur T. Johnson, Fischell Department of Bioengineering, University of Maryland, College Park, MD 20742, USA
Email:

artjohns@umd.edu
Federal Fiscal Year:

2011
Peer Reviewed:

True
Source Full Name:

Journal of Environmental and Public Health
Collection(s):

National Institute for Occupational Safety and Health
Main Document Checksum:

urn:sha-512:aafd2eef2632cbcca322824db17a84f1de4e7c024004f0c02cfb54522403c97d1aff16b5123e3b968c0a06a57719e38fcec7059fd26edc6f1f72211508c26156
Download URL:

https://stacks.cdc.gov/view/cdc/192450/cdc_192450_DS1.pdf
File Type:

[PDF - 4.58 MB ]

ON THIS PAGE

Details

CDC STACKS serves as an archival repository of CDC-published products including scientific findings, journal articles, guidelines, recommendations, or other public health information authored or co-authored by CDC or funded partners.

As a repository, CDC STACKS retains documents in their original published format to ensure public access to scientific information.