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The effectivity of improvised carbon air filter as an air purifier.

By: Gutierrez, John Christopher BContributor(s): Melody Jane M. Malig, Benjamin A. Guevara Jr., Maria Lou Isabella C. Juguilon, Karl Vincent Q. Siapno, Nakki Jules C. Urbano and Sean Andrea E. YbañezMaterial type: TextTextPublisher: Marikina City March 2019Description: vii, 38pages; illustration; 28cmSubject(s): 1. Air filters -- Case studiesLOC classification: TH 7683 | A3 G87 2019
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