Document Detail


Pulmonary and heart rate responses to wearing N95 filtering facepiece respirators.
MedLine Citation:
PMID:  22944510     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
BACKGROUND: Filtering facepiece respirators are the most common respirator worn by US health care and industrial workers, yet little is known on the physiologic impact of wearing this protective equipment. METHODS: Twenty young, healthy subjects exercised on a treadmill at a low-moderate (5.6 km/h) work rate while wearing 4 different models of N95 filtering facepiece respirators for 1 hour each, 2 models of which were equipped with exhalation valves, while being monitored for physiologic variables. RESULTS: Compared with controls, respirator use was associated with mean 1 hour increases in heart rate (range, 5.7-10.6 beats per minute, P < .001), respiratory rate (range, 1.4-2.4 breaths per minute, P < .05), and transcutaneous carbon dioxide (range, 1.7-3.0 mm Hg, P < .001). No significant differences in oxygen saturation between controls and respirators were noted (P > .05). CONCLUSION: The pulmonary and heart rate responses to wearing a filtering facepiece respirator for 1 hour at a low-moderate work rate are relatively small and should generally be well tolerated by healthy persons.
Authors:
Jung-Hyun Kim; Stacey M Benson; Raymond J Roberge
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-8-31
Journal Detail:
Title:  American journal of infection control     Volume:  -     ISSN:  1527-3296     ISO Abbreviation:  Am J Infect Control     Publication Date:  2012 Aug 
Date Detail:
Created Date:  2012-9-4     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8004854     Medline TA:  Am J Infect Control     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Published by Mosby, Inc.
Affiliation:
National Personal Protective Technology Laboratory/National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, Pittsburgh, PA.
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