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      <marc:subfield code="a">Guidance on improving indoor air quality in office buildings 2025.</marc:subfield>
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      <marc:subfield code="a">Issued also in French under title: Document d'orientation sur l'amélioration de la qualité de l'air intérieur dans les immeubles de bureaux 2025.</marc:subfield>
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      <marc:subfield code="a">"Pub.: 250228"--Page [ii].</marc:subfield>
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      <marc:subfield code="a">Includes bibliographical references (pages 52-55).</marc:subfield>
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      <marc:subfield code="a">"The purpose of this guidance is to summarize ways to evaluate, improve and maintain indoor air quality in office buildings. This guidance provides practical recommendations to address and respond to potential indoor air quality problems, including: guidance for reducing contaminant sources and properly operating ventilation systems; sample checklists for evaluating building systems; and considerations when hiring a professional to remediate indoor air quality issues. This guidance is intended for employers, building operators, maintenance staff, urban planners, as well as environmental public health professionals. …"--Introduction, page 2.</marc:subfield>
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