Airgle's Titanium Pro Module represents the next generation of Photo-catalytic Oxidation (PCO) technology that safely breaks down harmful chemicals and odors, while effectively killing bacteria and virus pollutants down to 0.01 micron in size. This disposable module is designed for easy removal and installation. It comes standard in the PurePal Plus AG850 and PurePal Clean Room AG900. Replace Titanium Pro Module when indicator light on display panel start blinking. Rated for 6000 hours of use. Item #AF850900T.