Johnson Controls. The York Affinity Series of indoor air quality solutions now includes a low-temperature duty UVC germicidal light. Installed inside HVAC systems, the UVC light is designed to eliminate odors caused by microbial organisms, such as mold and fungus, which can also restrict airflow and limit heat-transfer capabilities. The York Affinity UVC light is designed to provide the maximum dosage of UVC energy at 45º F to 55º F in a rapidly moving air stream. 877.453.9675. www.yorkupg.com.