What is the effect of UV on the components and accessories of the heating, ventilating, air conditioning (HVAC) system, like drain pans, humidifiers, media filters, wires and other HVAC materials?

Accelerated life tests have been completed to quantify the effect of UV light on plastic materials, including our humidifiers. UV light may cause some discoloration and slight chalking to some plastics, but little structural damage.  more