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Modern concepts of air filtration applied to dust respirators

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      <subfield code="a">Modern concepts of air filtration applied to dust respirators</subfield>
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      <subfield code="a">The current state of development of those aspects of air filtration particularly relevant to dust respirators is reviewed. Models and theories of airflow are described, and this description is followed by an account of the various mechanisms of particle capture by mechanical means and by electric forces</subfield>
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      <subfield code="t">The Annals of occupational hygiene</subfield>
      <subfield code="d">Oxford [etc.]</subfield>
      <subfield code="g">nº 4, 1989 ; p. 615-644</subfield>
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