Size-Resolved Penetration of Filtering Materials from CE-Marked Filtering Facepiece Respirators.

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985858%3A_____%2F17%3A00476259" target="_blank" >RIV/67985858:_____/17:00476259 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.4209/aaqr.2016.09.0390" target="_blank" >http://dx.doi.org/10.4209/aaqr.2016.09.0390</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.4209/aaqr.2016.09.0390" target="_blank" >10.4209/aaqr.2016.09.0390</a>

Result language

angličtina

Original language name

Size-Resolved Penetration of Filtering Materials from CE-Marked Filtering Facepiece Respirators.

Original language description

Throughout the years, the performance of the FFRs has been the topic of extensive studies, resulting mainly in the characterization of aerosol penetration through filters using aerosols that are thought to be similar to those encountered in workplaces. There are limited number of studies in the literature reporting CE-marked respirator performance, and there is a need to perform a penetration evaluation of CE-marked respirators through all 3 filtering classes: FFP1 (80%), FFP2 (94%), and FFP3 (99%). In this study, the percentage penetrations and the most penetrating particle size (MPPS) of 47 mm filters cut out from 13 different CE-marked respirator half masks (2 samples of each FFR) were evaluated size-selectively using nine sizes of charge-neutralized monodisperse aerosol, which ranged from 20 to 400 nm (CMD). Comparison of the penetrations at MPPS from all the examined filters showed that the percentage penetration ranged 3.2-16.3% (FFP1), 2.4-34.3% (FFP2), and 0.02-3.3% (FFP3). Experimental data also revealed that the penetration difference between 2 samples from the same respirator was in most cases up to 6.8%, and between 2 identical respirators up to 2.5%. The MPPS was found to be between 30 and 60 nm (CMD) in all measurements. By comparing the obtained results to the European Standard we conclude that the standard method underestimates particle penetration (especially for particles < 100 nm) due to the usage of non-neutralized, polydisperse test aerosol, detection methods burdened with measurement artifacts, and the assumption that the MPPS is at approximate to 600 nm (MMD) as the criterion for filtering facepieces to pass the penetration test.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10511 - Environmental sciences (social aspects to be 5.7)

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2017

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Aerosol and Air Quality Research

ISSN

1680-8584

e-ISSN

—

Volume of the periodical

17

Issue of the periodical within the volume

5

Country of publishing house

TW - TAIWAN (PROVINCE OF CHINA)

Number of pages

11

Pages from-to

1305-1315

UT code for WoS article

000403503700017

EID of the result in the Scopus database

2-s2.0-85018430348