Model 450 is the Bluezone air purification is the system of choice for large gathering spaces, including hospitals, schools, health care facilities, restaurant, and business offices. It has a flow rate of 150cfm, which is integral to the effectiveness of an air purifier, and can scrub 9000ft3 of air. Bluezone scientists perfected the flow rate/residence time of viruses, bacteria, and mold inside the container for an effective log5 kill rating. There are 4 ultraviolet lights programed to a wavelength of 254nm. Once the contaminates pass through the Viral Kill chamber the VOC's pass through room temperature oxidation catalyst and are converted into CO2 and H2O. Clean ozone free air is pumped back into the room.