Accession Number : AD0774526

Title :   Ozone and Glycol Vapor Decontamination of Air in a Closed Room,

Corporate Author : NAVAL GRADUATE DENTAL SCHOOL BETHESDA MD

Personal Author(s) : Pelleu,G. B. , Jr. ; Berry,R. F. ; Holleman,N. G.

Report Date : 01 JUL 1973

Pagination or Media Count : 14

Abstract : A dielectric type generator (OzoneAir) and two commercial glycol-type spray decontaminants (Ozone and Air-Fresh) were evaluated in a closed room for effectiveness in reducing the number of airborne bacteria. Ozone in concentrations of 0.05, 0.1 (the threshold limit value for humans), and 1.0 p.p.m., and the two commercial glycol aerosols, were tested in a 700-ft. capacity closed room for their effects on reductions in the number of airborne Streptococcus mitis, Staphylococcus epidermidis, and Bacillus subtilis spores. At ozone concentrations of 1.0 p.p.m., more than 90% of the streptococci and staphylococci were removed from the air within five minutes. No airborne reductions were noted at the TLV (threshold limit value) concentration of ozone. The effect of the glycol aerosols on 60-minute reductions of airborne bacteria was no different from that of the water aerosol controls. (Author)

Descriptors :   *Decontamination materials, *Bacterial aerosols, *Ozone, *Glycols, Bacteria, Streptococcus, Staphylococcus, Bacillus subtilis, Decontamination equipment, Spores, Generators

Subject Categories : Hygiene and Sanitation

Distribution Statement : APPROVED FOR PUBLIC RELEASE