United States
Environmental Protection
Agency
Research and Development
Air and Energy Engineering
Research Laboratory
Research Triangle Park, NC 27711
EPA/600/SR-93/177 November 1993
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leakage around the door and through the
walls. In running these tests, the chief
interest was in the amount of ozone being
contributed to room air and not the ozone
levels at the face of the instrument. How-
ever, these were also measured.
Conclusions
When operated at the recommended
setting for normal use (dial set at 11
o'clock), the ozone generator contributes
little or no ozone to background air levels.
At the highest setting, however, it can
contribute as much as 100 ppb to a well-
ventilated room and 10 times that much to
a poorly ventilated one. Our personal ex-
perience shows that at that level the air
becomes difficult to breathe and there is
some irritation of the eyes and the mu-
cous membranes, perhaps due to exces-
sive drying.
The EPA author, Raymond S. Steiber, is also the EPA Project Officer (see below).
The complete report, entitled "Contribution to Indoor Ozone Levels of an Ozone
Generator," Order No. PB93-234 557/AS; Cost: $17.50, subject to change) will
be available only from:
National Technical Information Service
5285 Port Royal Road
Springfield, VA 22161
Telephone: 703-487-4650
The EPA Project Officer can be contacted at:
Air and Energy Engineering Research Laboratory
U.S. Environmental Protection Agency
Research Triangle Park, NC 27711
•U.S. Government Printing Office: 1993 — 550-067/80120
United States
Environmental Protection Agency
Center for Environmental Research Information
Cincinnati, OH 45268
Official Business
Penalty for Private Use
$300
BULK RATE
POSTAGE & FEES PAID
EPA
PERMIT No. G-35
EPA/600/SR-93/177
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