TY  - BOOK
AU  - Gutierrez, John Christopher B. 
AU  -  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
TI  - The effectivity of improvised carbon air filter as an air purifier
AV  - TH 7683  A3 G87 2019
PY  - 2019///
CY  - Marikina City
KW  - 1. Air filters -- Case studies
N1  - Includes: references
ER  -