Ultravation® UVMatrix™ AS uses UVC light to kill microorganisms in HVAC ductwork airstreams—including mold, flu viruses and bacteria. As HVAC systems work to control indoor climates for comfort and optimized productivity, the nature of HVAC operation promotes biological contamination of indoor air. UVMatrix™ AS: An array of UVC lamps that generate a high level of germicidal or anti-microbial intensity.