About: Performance of Facepiece Respirators and Surgical Masks Against Surgical Smoke: Simulated Workplace Protection Factor Study

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About: Performance of Facepiece Respirators and Surgical Masks Against Surgical Smoke: Simulated Workplace Protection Factor Study Goto Sponge NotDistinct Permalink

An Entity of Type : schema:ScholarlyArticle, within Data Space : wasabi.inria.fr associated with source document(s)

Attributes	Values
type	Academic Article research paper schema:ScholarlyArticle
isDefinedBy	Covid-on-the-Web dataset
has title	Performance of Facepiece Respirators and Surgical Masks Against Surgical Smoke: Simulated Workplace Protection Factor Study
Creator	Gao, Shuang Grinshpun, Sergey Koehler, Richard Yermakov, Michael
topic	covid:d934fd82446990b7be622f8be1c9a505b47f0b56#this
Source	Medline; PMC
abstract	OBJECTIVE: Surgical smoke generated during electrocautery contains toxins which may cause adverse health effects to operating room (OR) personnel. The objective of this study was to investigate the performance of surgical masks (SMs), which are routinely used in ORs, more efficient N95 surgical mask respirator (SMRs) and N100 filtering facepiece respirator (FFRs), against surgical smoke. METHODS: Ten subjects were recruited to perform surgical dissections on animal tissue in a simulated OR chamber, using a standard electrocautery device, generating surgical smoke. Six respiratory protective devices (RPDs) were tested: two SMs, two SMRs, and two N100 FFRs [including a newly developed faceseal (FS) prototype]. Fit testing was conducted before the experiment. Each subject was then exposed to the surgical smoke while wearing an RPD under the tests. Concentrations inside (C(in)) and outside (C(out)) of the RPD were measured by a particle size spectrometer. The simulated workplace protection factor (SWPF) was determined by the ratio of C(out) and C(in) for each RPD-wearing subject. RESULTS: For the SMs, the geometric means of SWPF(total) (based on the total aerosol concentration) were 1.49 and 1.76, indicating minimal protection. The SWPF(total) values of the SMRs and N100 FFRs were significantly higher than those of the SMs: for the two SMRs, the SWPF(total) were 208 and 263; for the two N100s, the SWPF(total) values were 1,089 and 2,199. No significant difference was observed between either the two SMs or the two SMRs. The SWPF(total) for the novel FS prototype N100 FFR was significantly higher than the conventional N100 FFR. The correlation between SWPF(total) and fit factor (FF) determined for two N95 SMRs was not significant. CONCLUSIONS: SMs do not provide measurable protection against surgical smoke. SMRs offer considerably improved protection versus SMs, while the N100 FFRs showed significant improvement over the SMRs. The FS prototype offered a higher level of protection than the standard N100 FFR, due to a tighter seal. While we acknowledge that conventional N100 FFRs (equipped with exhalation valves) are not practical for human OR use, the results obtained with the FS prototype demonstrate the potential of the new FS technology for implementation on various types of respirators.
has issue date	2016-02-28(xsd:dateTime)
bibo:doi	10.1093/annhyg/mew006
bibo:pmid	26929204
has license	no-cc
sha1sum (hex)	d934fd82446990b7be622f8be1c9a505b47f0b56
schema:url	https://doi.org/10.1093/annhyg/mew006
resource representing a document's title	Performance of Facepiece Respirators and Surgical Masks Against Surgical Smoke: Simulated Workplace Protection Factor Study
has PubMed Central identifier	PMC7109898
has PubMed identifier	26929204
schema:publication	Ann Occup Hyg
resource representing a document's body	covid:d934fd82446990b7be622f8be1c9a505b47f0b56#body_text
is http://vocab.deri.ie/void#inDataset of	https://covidontheweb.inria.fr:4443/about/id/http/ns.inria.fr/covid19/d934fd82446990b7be622f8be1c9a505b47f0b56
is schema:about of	named entity 'PROTECTION' named entity 'SIMULATED' named entity 'study' named entity 'indicating' named entity 'respirator' named entity 'total' named entity 'respirator' named entity 'ratio' named entity 'device' named entity 'subjects' named entity 'The' named entity 'The' named entity 'N100' named entity 'surgical' named entity 'Simulated' named entity 'PROVIDE' named entity 'SUBJECTS' named entity '263' named entity 'VALUES' named entity 'VARIOUS' named entity 'CORRELATION' named entity 'SIMULATED' covid:arg/d934fd82446990b7be622f8be1c9a505b47f0b56 named entity 'USED' named entity 'DETERMINED BY' named entity 'IMPROVED' named entity 'RESPIRATOR' named entity 'CONCLUSIONS' named entity 'DUE TO' named entity 'OBTAINED' named entity 'MEASURABLE' named entity 'CONVENTIONAL' named entity 'ORS' named entity 'FIT' named entity 'RESPIRATORS' named entity 'USE' named entity 'SMOKE' named entity 'STUDY' named entity 'FACTOR' named entity 'NOT SIGNIFICANT' named entity 'PERFORM' named entity 'AEROSOL' named entity 'NEWLY' named entity 'INDICATING' named entity 'WORKPLACE' named entity 'ACT' named entity 'HEALTH' named entity 'RATIO' named entity 'MEASURED' named entity 'LEVEL' named entity 'OFFERED' named entity 'EXPOSED TO' named entity 'SURGICAL MASKS' named entity 'NOVEL' named entity 'EFFECTS' named entity 'SURGICAL MASKS' named entity 'PERFORMANCE' named entity 'RESPIRATORS' named entity 'VALVES' named entity 'OBJECTIVE' named entity 'RESULTS' named entity 'STUDY' named entity 'SPECTROMETER' named entity 'WORKPLACE' named entity 'ANIMAL TISSUE' named entity 'SURGICAL' named entity 'HIGHER' named entity 'MEANS' named entity 'IMPLEMENTATION' named entity 'PERFORMANCE' named entity 'CONTAINS' named entity 'RPD' named entity 'GENERATING' named entity 'TO INVESTIGATE' named entity 'SIGNIFICANT' named entity 'DEVICE'

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