Filter and leak penetration characteristics of a dust and mist filtering facepiece

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      <subfield code="a">The filtering facepiece, also referred to as a disposable respirator, is an extensively used type of respirator without an officially accepted fit testing method. This study describes an aerosol generator and a sampling train, which have been developed for investigating the aerosol penetration characteristics through the filter element and the face seal</subfield>
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      <subfield code="g">Vol. 51, nº 12, December 1990 ; p. 632-639</subfield>
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