Radon progeny reduction by means of an air cleaner of the polarized media type

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      <subfield code="a">Radon progeny reduction by means of an air cleaner of the polarized media type</subfield>
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      <subfield code="a">The performance of an air-cleaner for the control of radon progeny in dwellings and in laboratory spaces has been investigated in a walk-in radon/thoron test facility. The air cleaner consists of a fan and a special filter material sandwiched between two metal screens to which an electric field is applied. The filter is the polarized fibre-glass media type</subfield>
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      <subfield code="a">The Annals of occupational hygiene</subfield>
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      <subfield code="t">The Annals of occupational hygiene</subfield>
      <subfield code="d">Oxford [etc.]</subfield>
      <subfield code="g">nº 5, October 1993 ; p. 481-495</subfield>
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