TY  - RPRT
TI  - Performance test of "Kleen-Air" glass fiber automatic renewable filter media 
AU  - Hunt, Charles M
AU  - Achenbach, Paul R
PY  - 1965
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS report ; 8674
DO  - 10.6028/NBS.RPT.8674
ER  -