True Measures

Air filters perform an important function in commercial and institutional facilities. Because indoor air typically is two to five times more polluted than outdoor air, air filters are needed to remove respirable particles such as microorganisms, dust and allergens from the breathing air. In fact, ai...

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Veröffentlicht in:American School & University 2010-09, Vol.83 (1), p.30
1. Verfasser: Cox, Ron
Format: Artikel
Sprache:eng
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