1.  Selling and Servicing Residential, Commercial, and Industrial Indoor Air Purifiers. These Zentox Pure Air (ZPA) machines are USA manufactured by the Zentox Corporation in Hopewell, VA, a registered EPA establishment number 062427-VA. The original PhotoxTM name is derived from the Zentox patented proprietary process referred to as PhotoCatalytic Oxidation (PCO).

The unique internal Catalytic Reaction Module (CRM) absorbs the airborne impurities. The CRM is then exposed to an Ultraviolet UV-A light which safely and effectively destroys hazardous and objectionable airborne contaminants including, but not limited to bacteria, virus, mold/fungi, allergens, volatile organic compounds (VOC), odors, carbon monoxide, ozone and more. These impurities are converted to carbon dioxide and water vapor. Once destroyed, the catalyst on the CRM is effectively regenerated.

2. Collection of Indoor Air Samples for on-site and subsequent laboratory analysis. The sample collection methods used follow recognized industry protocols as do the laboratory analysis procedures. Sample collection and analyses include air borne particulates, Volatile Organic Carbons (VOC), mold/fungus, allergens, total bacteria, mycotoxins, flu and cold virus, SARS-CoV-2 (Covid 19). 

3. Consultative Review of the Indoor Air Heating, Cooling, and filtration Systems. The objectives of these reviews are to provide guidance on where and how to collect indoor air samples, selection of the analysis laboratory, and where to place the air purifier(s).