Open AccessRelative Resistances of Microorganisms to Cathode Rays
Author(s) -
Rollin E. Pepper,
Nancy T. Buffa,
Velma L. Chandler
Publication year - 1956
Publication title -
applied microbiology
Language(s) - English
Resource type - Journals
ISSN - 0003-6919
DOI - 10.1128/aem.4.3.149-152.1956
Subject(s) - microorganism , cathode , environmental science , materials science , geology , electrical engineering , engineering , bacteria , paleontology
The method used in evaluating the respiratory protection provided by representative types of contagion masks against an aerosol of Bacillus subtilis var. niger spores has been described. It can be concluded that the contagion masks evaluated offer poor respiratory protection against airborne microorganisms in the particle size range of 1.0 to 5.0 ,u in diameter. Commercially available dust respirators and related masks are approximately 2.5 to 5 times more efficient than contagion masks. An even higher degree of protection can be obtained by the use of full-face masks.
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