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Appl Environ Microbiol. 1963 May; 11(3): 239-243

Evaluation of a New Bactericidal Spray Effective against Staphylococcus aureus

Andersen Samplers & Consulting Service, Provo, Utah

ABSTRACT

A new germicidal spray consisting of an active ingredient, 2-chloro-4-phenylphenol, solvent, and propellant was evaluated against aerosols of Staphylococcus aureus and spores of Bacillus subtilis. The method of evaluation consisted of determining the decay rate of the bacterial aerosols in a small chamber, with and without the aerial germicide present. The method is unique in that the effect of very short exposures of airborne bacteria to aerial germicides can be measured accurately. By use of the method outlined, extremely potent aerial germicides may be evaluated against highly sensitive organisms. The 2-chloro-4-phenylphenol spray was found to be extremely effective against S. aureus but only moderately effective against spores of B. subtilis.