Do UV Light Purification Systems Really Work?
Good indoor air quality in a house is vital for the health of the household. Unfortunately, research indicates that our indoor air quality is often more polluted than the air outside. Since most of us spend most of our time indoors, this is a big problem! There are all sorts of gadgets on the market to improve indoor air quality, but it’s important to be wary of some of the claims made by the sellers. You might think that UV light purification systems are just another gimmick meant to separate you from your money, but, in fact, these systems really do work.

How Does a UV Light Air Purifier Work?
It’s common knowledge that UV light can be damaging to human tissue, but did you know that it has similarly harmful effects on microorganisms? You might remember that, during the pandemic, UV radiation was sometimes used for sanitization. This was done because UV rays have long been known to effectively kill bacteria, and they are also known to eliminate mold and viruses, as well. So, couldn’t you just open all your curtains to let the sun stream into your house and kill all the germs in the air? Unfortunately, that’s not how it works. The sunlight that streams through your window, ages your skin, and gives you a sunburn is made up of UVA and UVB radiation. The UV radiation that provides sanitization power is UVC radiation, and these rays are almost completely filtered out by the ozone layer before they reach us. The UVC rays in lights needed for disinfection are manmade.
Where Are UV Light Purifiers Used in Homes?
There are a few types of UV air purifiers used in homes. Standalone UV air purifiers clean the air in a limited area, like an individual room. They do this by pulling air in through an intake vent, exposing it to UV light to remove contaminants, and sending it back out to circulate in the room. These are easily moved from area to area, but they are limited in the amount of air they can treat. The most effective way to purify the air in your home is to install UV light for the AC system, in the air handler and the ductwork. When UV lights are integrated into your HVAC system, the system continually disinfects your air, vastly improving the air quality.
Will an Air Purifier with Ultraviolet Light Really Work? The Science & Studies
Since the 1800s, UV light has been used as disinfection, in lamps for hospitals, and to purify water and food supplies. Modern research backs this up, with one Duke University study finding that UVC light sources can provide 99 percent deactivation of viruses like influenza. At University of Boston, a review of decades of data concluded that UV systems can reduce airborne bacteria and fungal bioaerosols by more than 90 percent. These and other contemporary studies confirm that these systems are a worthwhile investment.
Benefits of UV Light Air Purification & UV Light Air Conditioning Units
UV light purification systems offer several benefits, even beyond their powerful air purification. By neutralizing harmful contaminants in the air, they also remove unwanted odors. Because there are fewer impurities clogging the system, your air conditioner will work more efficiently, and this will result in lower maintenance costs, as well as savings on energy bills.
Limitations and Considerations: Is UV Right for You?
Of course, there are limitations and potential downsides to UV light air filtration systems. First, there is an initial investment that may be too much for some homeowners. Additionally, there is a limit to what UV radiation can do, and some things, like removing pet hair from the air, require a physical filter, like a HEPA filter. An HVAC professional will be able to help you choose a UV air conditioning filtration system that combines proper air filtration with UV technology, in a combination that is extremely effective at significantly improving indoor air quality.
Should You Install a UV Light for Your AC System?
Whether or not UV light air purification is the right choice for you is largely subjective. If you want to pay extra for an air filtration system that is germicidal, it’s not a bad idea, though it may be overkill. For people with a compromised immune system or another health condition, it is a very worthwhile investment. If you are on the fence, talk to an HVAC professional to get advice on your particular situation.
Frequently Asked Questions About UV Light Air Filtration Systems
- How does a UV light air purifier differ from a traditional air purifier? While a traditional air purifier typically uses HEPA filtration to remove contaminants from the air, a UV light air purifier works to destroy dangerous microorganisms in the air, using ultraviolet radiation.
- Can a UV light in my AC or HVAC system improve indoor air quality? Yes, by removing bacteria, viruses, and mold from the air, a UV light can improve your home’s indoor air.
- Is UV-C light safe to use in home air conditioning or air filtration devices? A UV light for air conditioning should always be installed by a professional. Direct exposure to UVC rays can cause damage to the skin and eyes, so caution is advised when dealing with a UV light. Additionally, all UV purifiers should have an automatic shutoff feature.
- Will a UV light air purifier help with allergies or asthma? Yes, by removing contaminants and allergens from the air, UV light air filtration can ease symptoms of many respiratory conditions, including allergies and asthma.
- What maintenance does a UV light system require? To keep your UV light system working properly, regular maintenance is required. This includes replacing the bulbs every 12 to 24 months and making sure the bulbs stay clean. Having an HVAC professional do this maintenance is a good idea, because the experts know how to maintain the systems safely.
Want to Know More About UV Air Conditioning Filtration Systems? Contact Best Value AC and Heating
For all your HVAC and maintenance needs, in Volusia and Flagler Counties, contact Best Value A/C and Heating LLC. We install top-rated, energy-efficient heating and air systems, as well as UV light purification systems, at competitive pricing. You’ll pay less for your system, and you can also save up to 30 percent off of your electric bills. We provide installation service, repairs, or maintenance, and we provide emergency service 24 hours a day, seven days a week, because we know things don’t only go wrong between 9 AM and 5 PM. Our locally-owned-and-operated, veteran-owned business is committed to integrity and excellent service, and we have an A+ BBB rating, as well as being a member of Angie’s List. We offer many specials and discounts, easy financing, and other offers, and our knowledgeable, friendly technicians have the tools and the experience to handle any repair or installation service the right way. Trust us to provide you with the top-name brands, and the kind of service that gives you peace of mind, knowing your home will stay cool and comfortable, even in the heat of summer. For more information, to schedule an appointment, or be pre-approved for financing, contact us through our website