http://www.marijuanapassion.com/forum/showthread.php?t=1998If your generator is pumping ozone directly into your grow room you will need to have a strong ventilation system to help keep the levels of ozone from building up to dangerous levels. Having the exhaust air vented outside is the best solution. Avoid spending excess amounts of time in your grow area if you are using an ozone generator. Concentrations (according to various controlling bodies) should not exceed concentrations of 0.10 ppm for more than a few hours at a time. It is also understood that these concentrations and below are not suitable for controlling odors. This means that if your grow room has an odor problem, and you are using an ozone generator, it is highly likely that you are exposing yourself to harmful levels of ozone. If you run your ozone generator on HIGH in a relatively unventilated area, you can easily reach levels of 1ppm, which is 10 times higher than the maximum recommended level.
astra007 said:for other peeps, please do some research before you give advise that is 10 years outdated.
www.epa.gov said:There is a large body of written material on ozone and the use of ozone indoors. However, much of this material makes claims or draws conclusions without substantiation and sound science. In developing Ozone Generators that are Sold as Air Cleaners, the EPA reviewed a wide assortment of this literature, including information provided by a leading manufacturer of ozone generating devices. In keeping with EPA's policy of insuring that the information it provides is based on sound science, only peer reviewed, scientifically supported findings and conclusions were relied upon in developing this document.
http://www.epa.gov/iaq/pubs/ozonegen.html andManufacturers and vendors of ozone devices often use misleading terms to describe ozone. Terms such as "energized oxygen" or "pure air" suggest that ozone is a healthy kind of oxygen. Ozone is a toxic gas with vastly different chemical and toxicological properties from oxygen. Several federal agencies have established health standards or recommendations to limit human exposure to ozone. These exposure limits are summarized in Table 1.