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Is UV Light For AC Worth It – Unravel The Truth 

Have you ever questioned the air quality within your home, especially in relation to your air conditioning system? Do you find yourself dealing with recurring allergies or respiratory issues? The air quality of your home largely depends on the cleanliness and efficiency of your air conditioning system. The question then arises, Is UV light for AC worth it?

Installing a UV light for your AC system can significantly enhance air quality by eradicating mold, bacteria, and viruses. Moreover, it boosts the efficiency of your AC unit, prolongs its lifespan, and aids in reducing energy consumption.

Is UV Light for AC Worth It? – Brief Guide

So, you might be wondering, is UV light for AC really worth it? According to HVAC experts and numerous studies, the answer is an emphatic yes. UV lights for AC systems do involve an upfront cost, but they deliver a slew of benefits that make them a worthwhile investment in the long run. These benefits range from health improvements, such as better respiratory conditions, to financial savings from lower energy bills and reduced maintenance costs. UV lights also improve the efficiency of your AC unit by keeping the coils cleaner, thereby prolonging the unit’s lifespan. Plus, they work tirelessly to sterilize your indoor air, creating a healthier living environment, especially in regions with poor air quality or humid climates.

Do You Need UV Light for AC?

UV light for air conditioning systems has become a hot topic in recent years. It’s often touted as a game-changer for indoor air quality and system efficiency. But do you really need it?

The answer largely depends on your specific needs and circumstances. First, let’s delve into what UV light does in the context of an AC unit. Ultraviolet (UV) light has been used for decades in various applications to kill bacteria, mold, and other microbes. In an AC system, UV light serves to sterilize the air that passes through, killing or neutralizing harmful microorganisms before they get distributed throughout your space.

Circumstances where UV light might be needed for AC include households with individuals prone to allergies, asthma, or other respiratory conditions. Also, homes located in humid regions, where mold growth is common, can benefit significantly from UV light in AC systems.

What Are the Different Types of UV Light for AC and How Much Do They Cost?

UV lights for AC typically come in two forms: Coil Sterilization Lights and Air Sterilization Lights.

Coil Sterilization Lights are the most common type of UV light in AC units. They’re installed in the return air duct and function by sterilizing the air handler coil. A clean coil results in more efficient cooling and less energy consumption. On average, a coil sterilization light costs between $60 and $300, not including professional installation charges.

On the other hand, Air Sterilization Lights, or air purifiers, are installed in the return air duct and sterilize moving air as it passes through. These units are usually more expensive, with prices ranging from $150 to $800.

While the upfront costs can be considerable, it’s important to compare these costs against long-term benefits and savings. UV lights can prolong the life of your AC unit and reduce the need for frequent cleanings and repairs. In many cases, the costs pay for themselves over time.

Is UV Light for AC Worth It?

The decision to invest in UV lights for your AC system is not to be taken lightly. It’s critical to weigh the costs versus the benefits, both immediate and long-term. While the initial cost of purchasing and installing a UV light system can be considerable, the long-term benefits can indeed justify this investment. Let’s delve into these aspects in detail.

  • Financial Consideration: The upfront costs of UV lights can range from $60 to $800 depending on the type of UV light system. This doesn’t include the potential costs of professional installation. However, long-term savings from reduced energy consumption and fewer maintenance requirements often offset this initial investment.
  • Health Aspects: Besides financial factors, the health benefits are a significant factor in this equation. UV lights in your AC system work tirelessly to reduce the presence of mold, bacteria, and other allergens in your indoor air. This proactive sterilization contributes to improved respiratory health and overall wellbeing, especially for individuals who suffer from conditions like allergies or asthma.

Different climatic and living conditions can influence the decision as well. For instance, UV lights can provide pronounced benefits in humid climates or densely populated urban environments where air quality can be poor due to higher levels of pollutants and allergens.

Expanding further on the benefits, UV lights can:

  • Prolong the Lifespan of Your AC Unit: By keeping the AC coils clean, UV lights help maintain the unit’s efficiency and prolong its lifespan. Fewer mechanical issues arise from a clean, well-maintained system.
  • Reduce Energy Consumption: With cleaner coils, your AC unit doesn’t have to work as hard, leading to lower energy consumption.
  • Minimize the Need for Maintenance and Cleaning: With a UV light continuously sterilizing your AC system, the need for frequent cleaning is reduced, saving you time and money.

To back up these assertions, various case studies and expert opinions align with these benefits, adding credibility to the worthiness of UV lights in AC units.

What Are the Benefits of Installing UV Light for AC?

Installing UV light in your AC system brings several benefits to the table. These advantages can directly impact your day-to-day life, from the quality of your indoor environment to your monthly energy bill. Let’s take a closer look at these benefits:

  • Improvement in Air Quality: UV lights effectively eliminate airborne bacteria, viruses, and mold spores, leading to cleaner and healthier indoor air. This directly translates to a healthier lifestyle, reducing the risk of airborne diseases and allergens.
  • Reduction of Mold and Bacteria: UV light is known for its sterilizing properties. It prevents the growth of mold and bacteria on your AC’s evaporator coils – organisms that not only affect the performance of your AC unit but also deteriorate the quality of your indoor air.
  • Enhancement of AC Unit Efficiency: By keeping the coils clean, UV lights ensure better heat transfer, which translates to improved efficiency of your AC unit. In other words, your AC unit can cool your space more effectively while consuming less energy.
  • Cost Savings: UV lights lead to cost savings in several ways. Cleaner, more efficient AC units use less energy, leading to lower energy bills. Further, with cleaner coils, your AC needs less routine maintenance and is less likely to suffer costly breakdowns.
  • Health Benefits: The reduction in airborne allergens and pollutants directly contributes to better health, reducing the incidence of allergies, asthma, and other respiratory conditions. By providing cleaner air to breathe, UV lights create a healthier indoor environment.

Note: Beginning in 2016, Browns Heating & Cooling has consistently served as the premier HVAC service provider for Chicago and beyond. We take pride in delivering authentic advice, reasonable rates, and top-tier services from our factory-trained, EPA-certified experts. Schedule your service or connect with us at (708) 536-8134.


In conclusion, investing in UV light for your AC system offers extensive benefits that go beyond monetary value. It not only enhances the efficiency of your AC unit and reduces energy consumption but also improves indoor air quality by eliminating harmful microorganisms. As a result, UV light for AC contributes to a healthier indoor environment, which can potentially reduce allergies and other respiratory conditions. However, it’s essential to assess your specific needs, living conditions, and budget before deciding. With the right approach, UV light for your AC system can indeed be a worthy investment towards improved comfort, health, and savings.


How does UV light enhance the efficiency of my AC unit? 

UV light improves AC efficiency by keeping the evaporator coils clean. It prevents microbial growth that can hamper heat transfer, allowing the AC unit to cool your space more effectively while using less energy.

Can UV light in AC systems help with allergies and respiratory conditions? 

Yes, UV light can help reduce allergies and other respiratory conditions by eliminating allergens like mold, bacteria, and viruses from your indoor air, contributing to a healthier indoor environment.

What are the cost implications of installing UV light for AC? 

The upfront costs of UV lights for AC can range from $60 to $800, not including installation. However, they can lead to cost savings in the long run due to lower energy bills and reduced maintenance requirements.

Are there different types of UV lights for AC and how do they differ? 

Yes, there are mainly two types: coil sterilization lights, which are installed near the coils and work continuously, and air sterilization lights, which sterilize the air as it passes through the AC unit. Both types contribute to better air quality and improved AC efficiency.