Mechanism of Action
A study conducted at the Lovelace Respiratory and Research Institute (LRRI), in an ultra-clean environmental chamber demonstrated that:
• Hydroxyl production levels are similar to the hydroxyl concentrations produced by sunlight outdoors
• Hydroxyls react within 20-40 milliseconds with volatile organic compounds (VOC) and generate powerful organic oxidants stable enough to circulate throughout the treatment space and sanitize air and surfaces
• The reaction rate of hydroxyls with VOC is a million times faster than ozone
• A very small quantity of ozone is produced as a byproduct of hydroxyl production, but the concentrations produced stay well within safe limits for occupied spaces
These results were subsequently published in a peer reviewed scientific journal. (David R. Crosley, Connie J. Araps, Melanie Doyle-Eisele & Jacob D. McDonald (2017) Gas-phase photolytic production of hydroxyl radicals in an ultraviolet purifier for air and surfaces, Journal of the Air & Waste Management Association, 67:2, 231-240, DOI: 10.1080/10962247.2016.1229236).
A study of the chemistry resulting from hydroxyl decomposition of VOC was conducted at Columbia Analytical Group. The results showed that ambient VOC were rapidly decomposed and that the steady state amounts of intermediate organic decomposition products, including aldehydes, ketones and alcohols did not increase above ambient levels in the treated space. PYURE Technology decomposes the VOC initially present and then decomposes the VOC formed as oxidation by-products, leaving behind a low, steady state concentration of VOC like that found outdoors.