Document Detail

An evaluation of the filtration performance of paediatric breathing system filters at low flows.
MedLine Citation:
PMID:  17448064     Owner:  NLM     Status:  MEDLINE    
The filtration performance of five different types of filter intended for use in paediatric anaesthesia was measured. A total of 120 unused filters (24 samples of each filter type) were evaluated. The pressure drop and filtration performance, using challenges of sodium chloride particles, were measured for each filter at 3 l min(-1) and 15 l min(-1). The pressure drop was less at the lower flow; there was a wide variation in the pressure drop across some filters. The filtration performance of all filter types showed an improvement at 3 l min(-1) compared to 15 l min(-1). Four filter types had filtration efficiencies greater than 95% at 15 l min(-1) and greater than 99% at 3 l min(-1). The remaining filter type had a filtration efficiency less than 90% at 15 l min(-1) and greater than 95% at 3 l min(-1). These levels of performance are comparable to that of breathing system filters intended for use in adult anaesthesia using flows representing mean inspiratory flow.
C A Malan; A R Wilkes; J E Hall; C Gildersleve
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Publication Detail:
Type:  Comparative Study; Evaluation Studies; Journal Article    
Journal Detail:
Title:  Anaesthesia     Volume:  62     ISSN:  0003-2409     ISO Abbreviation:  Anaesthesia     Publication Date:  2007 May 
Date Detail:
Created Date:  2007-04-23     Completed Date:  2007-06-07     Revised Date:  2007-06-14    
Medline Journal Info:
Nlm Unique ID:  0370524     Medline TA:  Anaesthesia     Country:  England    
Other Details:
Languages:  eng     Pagination:  504-8     Citation Subset:  AIM; IM    
Department of Anaesthetics and Intensive Care Medicine, Wales College of Medicine, Cardiff University, UK.
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MeSH Terms
Anesthesia, Inhalation / instrumentation*
Anesthetics, Inhalation / administration & dosage
Cross Infection / prevention & control
Drug Administration Schedule
Equipment Design
Filtration / instrumentation*
Infant, Newborn
Sodium Chloride
Tidal Volume
Reg. No./Substance:
0/Anesthetics, Inhalation; 7647-14-5/Sodium Chloride
Erratum In:
Anaesthesia. 2007 Jun;62(6):644

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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