by Mark Hansberger on December 19, 2013December 19, 2013 UV Lights Need Occasional Attention Despite Southwest Arizona’s arid climate, Yuma has its fair share of allergens in the air. The lack of humidity can also irritate the membranes of the nose and lungs, making it difficult for them to […]Read More Filed Under: IAQ – Indoor Air Quality– UV Lights Tagged With: biological airborne contaminants– Dual-bulb installations– hansberger refrigeration– hvac systems– indoor air quality– Single-bulb installations– ultraviolet (UV) lights– uv lights– yuma arizona