Are PCO Air Purifiers Better Than HEPA Filters?

June 7th, 2009

HEPA air purifiers have been on the market for a while, but there have also been some recent advances made in air purification technologies as of late. Many air purifier manufacturers are now utilizing Photocatalytic Oxidation (PCO) technology as a way of removing toxins from the air.ge hepa air purifier PCO air purifiers use broad-spectrum UV light which reacts with a thin film of titanium dioxide, which, in the presence of water, creates hydroxyl radicals and super-oxide ions that “burn” VOCs and microorganisms adsorbed on the catalyst’s surface. With that in mind, many consumers may mistake UV air purification with PCO technology, and rightfully so. PCO purification systems utilize UV lamps with additional wavelengths. 

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