@misc{1165476, author = {Carl W Coblentz and Paul R Achenbach}, title = {Performance characteristics of four models of "Dri-Pak" deep-bed air filters:}, year = {1963}, month = {1963-01-01 05:01:00}, publisher = {, National Institute of Standards and Technology, Gaithersburg, MD}, doi = {https://doi.org/10.6028/NBS.RPT.8001}, language = {en}, }