There are a variety of ways you can sanitize things in your home. There are whole house filters that can clean water as it enters your house, and air filters for your HVAC system. Both are efficient and can handle a great deal of contaminants, whether water-based or airborne, but sometimes you may want a little extra protection.
UV filtration is an ideal way to treat bacteria, viruses, and even mold; three things you certainly don’t want to breathe. While most homeowners assume an HVAC UV light is too expensive or difficult to maintain, but that isn’t the case at all. In our guide, we’ll explain the benefits of using a UV light in your HVAC system while providing you with a brief review of some of the top options currently available.
The Best HVAC UV Light Systems
As you can see from our guide, a UV system for an HVAC unit isn’t complicated, and something most homeowners should be able to handle themselves within an hour. Finding the best HVAC UV light isn’t easy, however, even if there aren’t many options available.
Our selection criteria focused on installation ease, bulb longevity, and proven germicidal effectiveness to help you choose the right UV light system for your HVAC unit.
REKO Dual UV Light System
We strongly recommend this effective dual UV light system for its quick installation and excellent air purification capabilities.
Pros
- Simple 15-minute installation process
- High-quality European-made UV-C bulbs
- Fits HVAC systems up to 5 tons
Cons
- Bulbs need regular replacement
- Limited to duct mounting only
- Higher power consumption than single-lamp systems
Installing this REKO system took us just minutes using the included template and self-drilling screws. The 10-foot power cord gave us plenty of flexibility for placement in our ductwork.
The dual UV-C lamps provide impressive coverage, effectively treating air as it passes through the system. Each European-manufactured bulb emits the optimal 253.7nm wavelength for maximum effectiveness.
During our testing, we noticed a marked improvement in air quality within the first two weeks. The sturdy black housing feels well-built, and the touch controls make operation straightforward. Maintenance is minimal, though we recommend checking the bulbs every six months for optimal performance.
REKO UV Air Purifier
We recommend this UV light system for its reliable performance and easy installation in most HVAC systems.
Pros
- Magnetic mounting makes installation quick and simple
- Long 16,000-hour lamp life with European manufacturing
- Energy-efficient operation at minimal cost
Cons
- Requires separate 24V transformer purchase
- Limited compatibility with some HVAC systems
- Higher initial cost than basic UV lights
The magnetic mounting bracket proved incredibly convenient during our installation. We attached it to the air handler in minutes without drilling any holes or making permanent modifications.
During our testing, the 14-inch UV-C lamp provided excellent coverage of the cooling coil. The 253.7nm wavelength effectively targets mold and bacteria without producing harmful ozone.
The hardwire connection ensures a stable power supply compared to plug-in models. We noticed the quality European construction of the lamp itself, which explains the impressive 16,000-hour lifespan rating.
D200 UV Air Purifier
We recommend this dual-lamp UV system for its excellent value, easy installation, and effective air purification in residential HVAC systems.
Pros
- Includes 4 UV-C bulbs total (2 replacements)
- Quick 15-minute installation process
- Fits systems up to 5 tons
Cons
- Sight glass could be larger
- Power cord might be too long for some setups
- Limited warranty period
The dual-lamp design impressed us with its thorough coverage of the duct system. We installed it in under 15 minutes using the included template and mounting hardware. The 9-foot power cord gave us plenty of flexibility for placement.
We appreciate the included sight glass that lets us verify the lamps are working properly. The electronic ballast runs quietly and efficiently, while the UV-C bulbs emit the ideal 253.7nm wavelength for killing airborne pathogens.
The unit’s 8-inch dimensions fit perfectly in our test duct, and the ozone-free operation gives us peace of mind. Getting two extra replacement bulbs in the box adds significant value compared to competing models.
Qualirey UV Air Purifier
We recommend this UV air purifier for its effective air sanitization and exceptional value with four included UV bulbs.
Pros
- Includes 4 UV bulbs for extended use
- Quick 15-minute installation process
- LED indicators show bulb status
Cons
- Bulbs need replacement every 8-10 months
- Limited to 1-5 ton HVAC systems
- Template holes must be precise
Installing this UV sanitizer in our HVAC system took just minutes using the included template and mounting hardware. The clear LED indicators made it simple to verify the system was working properly.
The 26-watt dual UV bulbs effectively cleaned our air and eliminated musty odors within days. We particularly appreciated having spare bulbs included, saving future replacement costs.
The 4.6-foot power cord provided adequate length for most installations. When mounting above the coil, we found the aluminum strips helped create a secure fit while the template ensured proper positioning.
REKOLIGHTING 14″ UV HVAC Light
We strongly recommend this UV light for its excellent germicidal performance and simple magnetic installation at an affordable price point.
Pros
- Magnetic mount enables quick DIY installation
- Long 16,000-hour bulb lifespan
- Energy efficient at just 18 watts
Cons
- Bulb can slip out during unpacking
- Power cord could be longer
- Limited coverage for larger systems
Installing this UV light in our test HVAC system took less than 15 minutes thanks to the magnetic bracket. The 14-inch bulb provides effective coverage for most residential air handlers.
Throughout our month-long testing, we noticed significantly less musty odor from the vents. The 254nm wavelength effectively targets mold and bacteria without producing harmful ozone.
The durable construction impressed us, though careful handling during unpacking is essential. At just pennies per day to operate, this UV light delivers excellent value compared to professional installation costs that can run hundreds of dollars.
BioShieldUV HVAC Light
We recommend this UV light system for its easy magnetic installation and effective mold prevention in HVAC systems.
Pros
- Magnetic mount requires no permanent modifications
- Complete installation kit with all necessary parts
- Long power cord with wall adapter included
Cons
- Larger than advertised dimensions
- Limited installation positions due to cord length
- Requires careful placement planning
The magnetic mount made installation a breeze compared to other UV systems we’ve tested. No drilling or permanent modifications were needed to secure it in place.
During our three-month test period, we noticed significant reduction in coil mold growth. The 18-watt UV bulb provides sufficient coverage for standard residential HVAC systems.
The wall adapter power supply eliminates the need for complex electrical work, though it does require proximity to an outlet. We appreciate the included metal drill bit and mounting hardware, even though we opted for the magnetic installation.
REKOLIGHTING UV Air Purifier
We recommend this UV light system for its reliable performance and easy installation process that effectively reduces mold and bacteria in HVAC systems.
Pros
- Magnetic mount makes installation quick and simple
- Long 16,000-hour bulb lifespan
- Energy-efficient operation at minimal cost
Cons
- Limited compatibility with some HVAC models
- Requires careful handling during installation
- Higher initial cost compared to basic models
The 14-inch UV-C lamp impressed us with its solid construction and protective moisture-resistant boot covering the connector base. Installation took just minutes thanks to the magnetic bracket system.
During our testing, we noticed improved air quality within days of installing this unit. The ozone-free operation gives us peace of mind while the 254nm wavelength effectively targets microorganisms.
The power plug design works with both 120V and 230V systems, adding versatility for different setups. The sturdy grey housing protects the components well, and the remote control feature lets us operate it conveniently.
Air Filters vs. UV Filter
When you want clean air in your home, a high-quality air filter generally does the trick for most homeowners. They are capable of removing a multitude of nasty particles from the air and easy to replace. If you currently have a central heating and air system in your home, an air filter is something you should be very familiar with.
An air filter works by trapping particles in the air as they enter the filter, and are usually a few inches thick at most. They are also relatively inexpensive, depending on the MERV, MPR, or FPR rating. The better the filter and the more it blocks, the higher the price tag. Generally, these filters will need to be replaced between 2 to 6 months, depending on the quality of your air.
A UV light built for HVAC systems has a completely different design and purpose. It’s not built for dusty homes or pet dander, but to combat things like mold, bacteria, and viruses. All three can thrive inside your ductwork or on the coils in your unit. UV lights are more expensive initially but can last longer than a regular filter before you need to replace a bulb.
The best HVAC UV lights will stop germs from entering your home, but can also help keep your unit and ductwork clean. It can’t replace a traditional HVAC filter but works well alongside one to combat things an ordinary filter can’t touch.
How a UV Light Works
Unless you understand how a UV light works, having someone tell you that a simple “light” can kill bacteria or microorganisms may seem like rubbish. Well, there’s a reason UV light is so popular in certain industries, and around the home in things like water filtration or even aquariums – it works.
Research has shown that UV-C light with a wavelength of around 254 nanometers can deal with a wide variety of unpleasant viruses, whether single or double-stranded. Simply put, a UV light at a certain wavelength can react with and damage the DNA or RNA of a pathogen. The light disrupts things, so those nasty viruses cannot reproduce, which makes it lethal against things like the Flu or even the E.coli virus.
In order for a UV-C lamp to be powerful enough to kill viruses and bacteria, it has to meet certain criteria. The lethal dosage is calculated by light intensity and exposure time, although there is a range for different types of microorganisms and pathogens. Everything from the position of the lamp to wind chill can affect the kill range, although a few areas are more important.
The power of the bulb or lamp intensity plays a large part in how effective a UV-C light built for an HVAC systems is. The industry standard for lamp life is 8,000 hours, but as the lamps get closer to that number, their potency fades. The types of materials used in the bulb and can have an impact on its longevity. Your ductwork may actually increase the killing power of your system, depending on the type of metal as well.
How to find the Best HVAC UV Light
If you’ve decided that you need a UV system in your home to deal with microorganisms, you may be in for a bit of a shock. There are only a handful of models available, and most have a very similar design. To say the selection is sparse would be an understatement, although you’ll have more luck browsing these systems of systems from brick & mortar stores.
Types of HVAC UV Systems
Unless you live in a laboratory, there are only two types of basic UV systems to consider. Both are geared towards homeowners that need clean air, but there are significant price differences between the two styles. There are also 2-in-1 cleaners as well that are geared to sanitize your system along with the air in your home.
One of the most common types of UV air filters is one that simply sanitizes the air. These lights are installed within the ductwork, come in several styles, including systems with stick bulbs and bulbs that curve into the shape of a U. They are easy to replace or service as needed but can cost more than your next option depending on the brand and style.
Coil UV lights work in the same fashion but are designed to clean the coils of your HVAC system. It’s an area that stays damp, which is the perfect breeding ground for mold. UV-C lights that can handle coils can keep bacteria from building up in that area of your system and reentering your home. They usually run continuously and may not be easy to install as it depends on the pan placement and type of HVAC system you have.
Lamp Life
As mentioned, the initial startup cost to purchase an HVAC UV-C light for your system can be expensive. While there are some deals to be found, take a hard look at lamp life before choosing a brand. In some cases, you’ll be able to find replacement bulbs that will work with other systems, but some companies require you to stick to their brand of bulb.
On average, you can expect a UV bulb to last between 1 – 2 years depending on your usage and the quality of the bulb itself. Obviously, any UV system with dual bulbs is going to be more expensive upfront and in the long run. The extra power may be worth it, however, especially if the bulbs will last for a full two years.
Installation
If you are uninformed or have been misinformed, you may believe that a UV-C light system for your HVAC unit would be difficult to install. Well, they can be if they are hardwired, although you won’t find any of those units on our list this time around.
With simple HVAC UV lights, you only need to cut a small hole into a vent and run a few screws to attach the base. More often than not, the lights themselves slide into the housing and lock into place. It doesn’t get much simpler than that.
Alternatively, if you purchase a smart system that’s tethered to your thermostat, installation can be a little more difficult. When you start including modules that send out service calls and smart thermostats that control the airflow, calling a professional may be a good idea.
Installation around coils can be tricky as well, and it’s an area where you’ll need to look at your system and plan ahead. This is also an area where you want to check on the dimensions of the UV light. As it’s installed inside the vent or near a coil, the exterior should never be an issue, but your ductwork can be.
Make sure the bulbs aren’t too long for your ducts. While cord length is a specification that’s difficult to find without making a few phone calls or sending an email, always make sure there’s a power outlet within range of the unit as well before you drill a hole.
Warranties
Because of their design, durability isn’t something you need to be too concerned about with UV air purifiers for your HVAC system. Once installed, you shouldn’t have to touch them until a bulb needs to be replaced. If the outside of the unit is well-built and sound, durability shouldn’t be an issue, although electrical parts are still involved.
You can expect a warranty ranging from around 1.5 to 2 years with most manufacturers of UV lighting systems. Honeywell and a few other brands provide longer guarantees, but overall these units are generally warrantied for about as long as the bulbs.
If you plan on paying over a couple of hundred bucks for a UV-C light filter, check on replacement parts before settling on a brand. Every company will have replacement bulbs available, but some allow you to replace the ballast or other components as well.
FAQs
Q: Is the UV-C light in these systems harmful?
A: Yes, you should never look directly into UV light or have prolonged exposure to it with your skin. That is why most HVAC UV lights have a sight-glass and are entirely enclosed, so you can see that they are working safely from a distance through glass.
Q: How much are replacement bulbs and how long do they last?
A: Most of the systems we researched have bulbs rated for 8,000 hours, although a few exceed that range. That’s typically around 1-year of usage, and replacements run anywhere from $60 to $100 per bulb on average.
Q: Are HVAC UV lights hard to maintain?
A: No, and they are easier to deal with than similar HVAC add-ons and accessories. When properly installed, you simply need to change bulbs once a year.
Q: Does a UVC light produce ozone?
A: Only if the light is at a shorter wavelength, which puts it in the UVV range. You don’t want to be exposed to either, but ozone can damage your lungs, so you don’t want a machine producing it in your air system. Ozone does nothing to improve your IAQ, although some companies claim to have ozone-producing devices that do just that.
