Loading and filtration characteristics of filtering facepieces

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<title>Loading and filtration characteristics of filtering facepieces</title>
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<title>American Industrial Hygiene Association journal</title>
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<name type="personal" usage="primary" xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="MAPA20080009908">
<namePart>Chen, C.C.</namePart>
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<name type="personal" xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="MAPA20080169282">
<namePart>Lehtimäki, Matti</namePart>
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<name type="personal" xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="MAPA20080119706">
<namePart>Willeke, Klaus</namePart>
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<dateIssued encoding="marc">1993</dateIssued>
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<abstract displayLabel="Summary">The present study investigated why respirators of the same category perform so differently. The degradation of colection efficiency by aerosol loading was also investigated. Some filtering facepieces of a higher performance category are made up of several layers of the same material used for a lower category filtering facepiece. This paper have investigated the cumulative effect of multiple filtration layers on pressure drop and filtration efficiency</abstract>
<note type="statement of responsibility">C.C. Chen, M. Lehtimäki and K. Willeke</note>
<subject authority="lcshac" xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="MAPA20080585679">
<topic>Higiene industrial</topic>
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<subject authority="lcshac" xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="MAPA20080543815">
<topic>Ensayos</topic>
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<subject authority="lcshac" xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="MAPA20080619831">
<topic>Mascarillas autofiltrantes</topic>
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<subject authority="lcshac" xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="MAPA20080601393">
<topic>Equipos respiratorios</topic>
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<subject authority="lcshac" xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="MAPA20080543969">
<topic>Filtros</topic>
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<subject authority="lcshac" xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="MAPA20080605278">
<topic>Contaminantes químicos</topic>
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<topic>Aerosoles</topic>
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<topic>Contaminación atmosférica</topic>
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<title>American Industrial Hygiene Association journal</title>
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<publisher>Fairfax, Virginia</publisher>
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<text>Vol. 54, nº 2, February 1993 ; p. 51-60</text>
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