How to Change UV Light in Your HVAC System

Most quality lamps will emit at least 80% of their original UV-C emission within a year. As with any lamp in your home, the UV bulb will need to be replaced at some point. The specific lifespan of a UV bulb will depend on the type of system and the manufacturer's recommendations. Generally speaking, a UV bulb will last between 1 and 5 years.

A “blue tube” system bulb usually lasts 1 to 2 years, while the APCO or APCO X bulb is expected to last more than 3 to 5 years. The only downside is that working with UV lights can be dangerous, so it is best to hire a professional to install them or take some safety precautions if you decide to do it yourself.


lights are relatively affordable, especially compared to air filtration systems, such as purifiers and air filters. HVAC UV lights are also good for limiting mold growth throughout the HVAC system and preventing certain respiratory diseases.

We recommend installing a UV light system designed to disinfect the air in the return air duct of your air controller. Once installed, UV lights require very little maintenance and only need attention when they need to be cleaned or replaced. If you don't replace a burned-out UV bulb, you won't be able to take advantage of the benefits that UV light can provide in your home. Most HVAC UV lamps are designed to be able to draw power from the fan, so that they only work when the air controller is turned on. It is important to ask your HVAC technician how to check the UV bulb during the installation or maintenance appointment for instructions that are more specific to your application.

It is also essential to ensure that it is impossible to see the UV lamp once it is installed in the air conditioning system.

What Are The Benefits Of HVAC UV Lights?

Ultraviolet lights in heating, ventilation, and air conditioning systems work by eliminating bacteria, microorganisms, and mold to keep indoor air clean and safe. If you're interested in improving indoor air quality, consider installing an ultraviolet (UV) light in your air conditioning system. Never look directly at a UV lamp; even brief exposure to UV light can cause permanent eye damage. If you are already convinced of the advantages of UV lights to keep your air conditioning system clean and safe, use the following tool to find the best air conditioning installers in your area and find the best deal on installing UV lights for your air conditioning system.

How To Maintain Your HVAC UV Light System

To maintain optimal performance of your HVAC UV Light system, it is recommended that you turn off the air conditioning system every three months, remove the lamp and wipe the UV bulb with a soft cloth. HVAC UV light systems use a special type of high-frequency, low-wavelength UV light called UV-C to destroy the nucleic acids that form the DNA of harmful bacteria that are transmitted through the air and to disinfect the air as it passes through the system.