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How UV Tubes Work

UV Light

HVAC UV lights are effective at removing and controlling mold and other bacteria inside the air handler of air conditioner units. Within AC units with UV tubes, mold near the UV bulb is killed, which keeps the coil (and ultimately the whole system) clean and free of mold, bacteria, and viruses.

But how do these UV lights work? Basically, UV-C light is germicidal, meaning it neutralizes the DNA of bacteria, viruses, and other pathogens. Ultimately, it puts an end to their ability to reproduce. Typically, UV lights are installed near the cooling coils; because all air in the system passes over the coil, the lights are able to kill all organic growth within the AC system. This is a particularly useful method in south Florida where evaporator coils can easily get wet due to humidity.

Benefits of UV – What Does it Do?

  • Fights germs. The germicidal UV lights disinfect the air, killing bacteria, germs, mildew, viruses, mold and black mold as it circulates through the ducts and past the UV lamps. Notably, UV kills bacteria and viruses that have become immune to other disinfection methods.
  • Stops and prevents growth of mold and bacteria in the central AC system.
  • Removes odors and ensures the air pumped through the system smells fresh.
  • Keeps the coils and other unit components, including the duct system, clean and free of mold and other pollutants.

UV technology is a safe, chemical-free approach to disinfection that requires no additional input other than the lights. It is simple, relatively inexpensive, and requires very little maintenance. However, it’s important to note that while UV lights effectively kill organic growth (bacteria, mold, viruses, etc.), they have no effect on allergens, pet dander, or dust. A UV light is just one element of an effective HVAC maintenance plan.

If you’re considering adding UV lights to your AC system, call American Air Cares to schedule a visit with one of our trained and knowledgeable technicians. And don’t forget to check out our special offers: right now you can save 10% off of UV light installation.


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The Careman American Air Care
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