Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Performance test of a "Dust-Gard" throw-away type air filter:



Carl W Coblentz, Paul R Achenbach
- NBS RPT 6938
Report Number
NBS RPT 6938


Coblentz, C. and Achenbach, P. (1960), Performance test of a "Dust-Gard" throw-away type air filter:, , National Institute of Standards and Technology, Gaithersburg, MD, [online], (Accessed September 25, 2023)
Created January 1, 1960, Updated May 19, 2023