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Indoor air purifier reduces many air contaminants.

Photox[TM], from Zentox, is an advanced air purification system designed to reduce indoor airborne microbiological and volatile-organic-compound (VOC) contaminants. Based on photocatalytic oxidation technology (PCO), Photox removes noxious odors, toxic vapors, and infectious organisms from the indoor environment.

In tests performed by EMSL Analytical, Inc., the nation's largest environmental testing firm, Photox excelled at removal of airborne contaminants. Tests were performed to determine effectiveness in the reduction of formaldehyde concentration, ammonia concentration, viable Stachybotrys sp. (black-mold spores), and Bacillus sp. in indoor air. Photox was found to reduce concentrations of volatile airborne chemical vapors to far below established OSHA exposure limits. In the formaldehyde test, reduction became evident after two minutes of operation. After 30 minutes of use, the formaldehyde concentration dropped from 5 ppm to 0.2 ppm. Ammonia levels were also reduced after two minutes of operation and went from 60 ppm to 9 ppm after 30 minutes and to 2 ppm after 60 minutes. For formaldehyde and ammonia, OSHA exposure limits are 0.75 ppm and 35 ppm, respectively.

Photox also reduced the concentration of viable Stachybotrys sp. after 60 minutes and Bacillus sp. after 120 minutes of operation. The Bacillus species are members of the same genus of the species that causes anthrax, Bacillus anthracis. Other hazardous and objectionable airborne contaminants that it removes include other bacteria, viruses, mold spores, cleaning-solvent vapors, paint odor, hydrogen sulfide, urine and fecal odors, cooking odors, and carbon monoxide.

The Photox purifying system is ideally suited for air purification in food-processing plants, hospitals, schools, office buildings, medical offices, laboratories, poultry grow-out houses and hatcheries, restaurants, and nursing homes. It does not emit any harmful products or ozone. Destruction of contaminants occurs completely inside the unit.

For more information, contact Zentox at (757) 369-9870 or info@zentox.com, or visit www.zentox.com.
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Title Annotation:Photox[TM]
Publication:Journal of Environmental Health
Geographic Code:1USA
Date:Jul 1, 2006
Words:303
Previous Article:Workbook for hazard risk assessment.
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