Indoor air quality is a critical concern, especially when we spend most of our time inside our homes. In recent years, UV (ultraviolet) light technology has been utilized in HVAC systems to help improve air quality. But what exactly are UV lights and how do they work in an HVAC system?

What Are UV Lights?

UV lights are part of the electromagnetic spectrum, which includes radio waves, microwaves, and infrared radiation. In the spectrum, ultraviolet radiation is between visible light and X-rays. There are three types of UV lights- UVA, UVB, and UVC, and only UVC can be used to purify the air as it is the most efficient in killing microorganisms.

How Do UV Lights Work in HVAC Systems?

UV lights installed inside HVAC systems are designed to irradiate the air that passes through the system. The light rays emitted by the UV lamps penetrate the cell walls of microorganisms, disrupting their DNA or RNA, thereby making it impossible for them to replicate. This method of air purification is particularly effective in neutralizing bacteria and viruses, which are the common causes of respiratory infections.

Discover the Benefits of Installing UV Lights in Your HVAC System

Let’s explore the benefits of installing UV lights in your HVAC system and how it can protect your health and well-being.

Helps to Improve Air Quality

When the air containing viruses and bacteria passes through the UV lights, these microorganisms get neutralized, making the air safe to breathe. By doing so, the UV lights not only improve your family’s overall health and well-being but also protect the people in your house from a host of illnesses and diseases, making your home a healthier space to live in.

Extends the Lifespan of Your System

UV lights also extend the lifespan of your HVAC system. By reducing the amount of heat that is lost through convection, investing in UV light technology is actually an investment in the overall health of your heating and cooling system. Anything you can do to take some strain from your system can add time to its lifespan.

The Drawbacks of Installing UV Lights in Your HVAC System

As is the case with any type of indoor air quality solutions, there are pros and cons that you will need to consider. While UV light air purification technology can certainly make your home and your HVAC system healthier, you should be sure to inform yourself about some of the potential drawbacks of using this type of air purification.


The upfront expense of purchasing and installing the lights, as well as the ongoing maintenance costs, can be significant. Depending on the type of UV light air purifier that you install, how many units you opt for, and a number of other factors, UV light air purifiers can cost anywhere from $200 to $800.

Additionally, some homeowners may worry that the energy usage required to power the UV lights will result in higher monthly utility bills. However, the long-term benefits of HVAC UV lights can ultimately outweigh the initial cost.

Additionally, the cost of HVAC UV lights has decreased over the years as the technology has become more widespread. Many companies are now offering affordable options for both residential and commercial properties. Additionally, some utility companies may offer rebates for the installation of energy-efficient HVAC systems, including those with UV lights. In terms of ongoing maintenance, UV lights do require some cleaning and replacement of bulbs over time. However, the amount of maintenance required is minimal compared to the benefits gained.


While UV lights have been proven effective in removing certain types of air pollutants, it is important to note that they may not be effective in removing all forms of air pollutants. For example, while UV-C radiation is effective in removing bacteria and viruses, it may not be effective in removing other types of air pollutants such as volatile organic compounds (VOCs).

VOCs are a common source of indoor air pollution, and they can emanate from household products like adhesives, cleaning agents and air fresheners. Despite this limitation, UV lights remain a powerful tool in the fight against air pollution. When installed correctly and used in conjunction with other air purification methods, they can help to create a cleaner and healthier indoor environment.

What to Expect When Having UV Lights Installed

With UV light installations becoming increasingly popular in homes and businesses, you may be wondering what exactly to expect if you decide to invest in this technology. Here is an outline of what you can expect when having UV lights installed in your space.

Assessment and Consultation

The first step in the UV light installation process is typically an assessment and consultation with a professional technician. During this preliminary phase, the technician will assess your space to determine the best location for the UV lights and the appropriate size, type, and number of lights needed. They will also discuss the different installation options and provide a cost estimate. At this point, you can ask questions and voice any concerns, so you’ll be fully informed before moving to the installation phase.

Preparation and Installation

Once you have agreed to proceed with the installation process, the technician will begin the process of installing UV lights by identifying the right location. Generally, the lights are installed in the ductwork or air handler of the HVAC system. After determining the best spot to place the light, the technician may clean the surface and check for any debris that might interfere with the installation. They will also prepare all necessary wiring and mounting screws according to manufacturer’s instructions, then secure each UV light unit in place.

Testing and Adjustment

After the installation is completed, the technician will typically conduct a series of tests to ensure that the lights are working properly and effectively. This may involve using specialized equipment such as a UV meter to measure the strength of the lights to ensure that they’re emitting the correct wavelength and intensity of UV light. If any issues are identified, adjustments may be made to the installation or the lights themselves to ensure optimal performance.

Maintenance and Upkeep

Once your UV lights are installed and functioning properly, maintaining them is important to ensure optimal performance and longevity. This may involve periodic maintenance such as changing filters, checking connections or other routine tasks. You should plan on scheduling professional maintenance on your system at least once a year.

Get in Touch With Professionals Today!

Are you tired of being too hot or cold in your home? Do you worry about the air quality inside your house? Oak Island Heating and Air Conditioning can help! We provide first-rate heating, cooling, and indoor air quality services. Not only that, we also offer HVAC zoning and smart thermostat services to allow you to maximize both comfort and efficiency in your home. Our superior service is available for clients from San Marcos and the surrounding areas. We are committed to providing the best solution for improving climate control and air quality in your home. Call Oak Island Heating and Air Conditioning today to learn more about our services.

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