Studies have shown that installing a UV HVAC light can be an effective way to improve indoor air quality. A study found that UV lights could reduce the amount of mold and bacteria in a test home by 97%, while another study showed that air purifiers with ultraviolet light could reduce the amount of airborne flu virus by 90%. UV lights sterilize and minimize the effects of mold, fungi and bacteria, making them an ideal solution for preventing the spread of illnesses like the common cold. Adding a UV HVAC light to your system can also help prevent clogs in ducts and pipes, as well as cooling coils.
This can increase system capacity by up to 35%, resulting in reduced energy costs and less long-term maintenance. The most common type of HVAC light is a duct light placed near the central air system fan. UV HVAC lighting systems use a special type of high-frequency, low-wavelength ultraviolet light, called UV-C, to destroy the nucleic acids that make up the DNA of harmful bacteria found in the air and to disinfect the air as it passes through the system. This is why UV lights are not effective in preventing the spread of COVID-19. Additionally, they help destroy volatile organic compounds (VOCs), which cause unpleasant odors that are reminiscent of tobacco smoke.
This makes them beneficial for people with allergies and respiratory problems. UV HVAC lights don't remove dust and dander from air circulation, so you may need to choose another solution if this is your problem. However, they are ideal for residential air conditioning systems because they are affordable, easy to install and disinfect the air when the air conditioner or oven is working.