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Inadequate Air Cleaning Ability, Production of Harmful Ozone Plague Ion-Generating Products Sold As Air Cleaners |
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 Photo: Jennie Trower |
Dr. Jeffrey Siegel stands in the doorway of the indoor air quality testing chamber, holding an instrument which tests both carbon dioxide and carbon monoxide levels, as well as air temperature and relative humidity. Click on photo for high-res image. |
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Photo: Jennie Trower |
Dr. Siegel stands in the indoor air quality testing chamber. Pictured on the left are a HEPA filter and an ion generator; equipment that measures ranges of particle sizes sits on the right. Click on photo for high-res image. |
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Photo: Jennie Trower |
Dr. Siegel inside the indoor air quality testing chamber, with a range of ion generators, an ozone generator, a HEPA filter and particle-size testing equipment. Click on photo for high-res image. |
