The effectivity of improvised carbon air filter as an air purifier. - Gutierrez, John Christopher B.; 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. Ybañez (Marikina City, 2019)
Includes: references
Keywords: 1. Air filters -- Case studies