United States
Environmental Protection
Agency
National Risk Management
Research Laboratory
Research Triangle Park NC 27711
Research and Development
EPA/600/SR-95/154 November 1995
4>EPA Project Summary
Ozone Generators in Indoor Air
Settings
Raymond S. Steiber
This report gives information on
home/office ozone generators. It dis-
cusses their current uses as
amelioratives for environmental to-
bacco smoke, biocontaminants, vola-
tile organic compounds, and odors and
details the advantages and disadvan-
tages of each.
This Project Summary was developed
by EPA's National Risk Management
Research Laboratory, Research Triangle
Park, NC, to announce key findings of
the research project that is fully docu-
mented in a separate report of the same
title (see Project Report ordering infor-
mation at back).
Overview
This report presents information on
home/office ozone generators. It discusses
their current uses as amelioratives for en-
vironmental tobacco smoke (ETS),
biocontaminants, volatile organic com-
pounds, and odors and details the advan-
tages and disadvantages of each. Ozone
appears to work well against household
odors and ETS, but caution needs to be
exercised in its use because of the pro-
duction of byproducts such as formalde-
hyde. Ozone has biocidal effects, but its
use in household settings is limited by the
high concentrations needed for complete
kills. Ozone has decremental effects on
lung function in humans that persist for
24-48 hours.
In experiments conducted at the indoor
air test house, each of the three ozone
generators studied produced concentra-
tions in excess of the Occupational Safety
and Health Administration limit for work-
place exposures. In addition, when inte-
rior doors were left open, adjoining rooms
were also subjected to such exposures.
Total ozone decay times for all the con-
centrations studied did not exceed 12 min-
utes.
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Raymond S. Steiber is the EPA Project Officer (see below).
The complete report, entitled "Ozone Generators in Indoor Air Settings, "(Order No.
PB96-100201; Cost: $17.50, subject to change) will be available only from
National Technical Information Service
5285 Port Royal Road
Springfield, VA22161
Telephone: 703-487-4650
The EPA Project Officer can be contacted at
National Risk Management Research Laboratory
U.S. Environmental Protection Agency
Research Triangle Park, NC 27711
United States
Environmental Protection Agency
National Risk Management
Research Laboratory (G-72)
Cincinnati, OH 45268
BULK RATE
POSTAGE & FEES PAID
EPA
PERMIT No. G-35
Official Business
Penalty for Private Use
$300
EPA/600/SR-95/154
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