Do I Need a UV Light For My Air Conditioner? (2022)

With the coronavirus global pandemic going on, it’s important to adhere to all of the CDC guidelines for protecting your and your family. This includes cleaning, disinfecting, and keeping up with hand hygiene. When you use the bathroom, make sure to wash your hands well with soap and warm water. The idea is not to panic but to be smart about avoiding the spread of bacteria and germs. Hand sanitizers are great if you have them around, but antibacterial soap should be fine as well. What’s most important, is that you become sanitary conscious and keep your hands off your face. If we wouldn’t be always touching our faces and rubbing our noses the risk for contraction would be greatly reduced.

Do I Need a UV Light For My Air Conditioner? (1)

According to the CDC, COVID-19 may remain viable for hours to days on surfaces, depending on the material type. This means that we need to be concerned of how the air in our homes, schools, and public places may play host to the coronavirus. The last thing we need to worry about, is what viruses and bacteria are circulating in our dwellings.

The good news is that the warmer weather is coming, and homeowners willbegin turning on their central air conditioning systems. This means that thestationary air in your home will now begin to circulate by being drawn in viathe return vent. The warm air then passes through the air handler and getscooled down by the evaporator coils. The process continues until the room iscooled down according to the set temperature on the thermostat.

(Video) Why Do I Need A UV Light In My Air Conditioning System?

During the air-cooling process, the air passes through a filter whichremoves dust, danders, and allergens. The clean air flows through the coolingcoils and then passes through a grill to remove any remaining unwantedelements. After years of HVAC use, the evaporator coils tend to build up dustand residue from the system. In addition to getting your air vents cleaned,it’s recommended to clean this part of the system as well. Only a licensedprofessional should be hired as doing it yourself may potentially damage yoursystem.

Do I Need a UV Light For My Air Conditioner? (2)

Unfortunately, not all elements get filtered out. Even when using a high efficiency HEPA filter, particles less than 0.3 microns will still pass through. Viruses and bacteria are generally between 0.2 and 2.0 um, and those are definitely not getting filtered. As per coronavirus, if it’s floating around the home chances are it will pass through the filter and grill at the coiling coils.

Using UVlight to keep HVAC interior surfaces free of mold and pathogens

Ultraviolet light or black light is outside the physical spectrum oflight and can only give off light when reflecting off other colored surfaces.For example, shining a UV light on colors of orange or white will give them apretty glow. UVA rays are produced by the sun and account for up to 95% of UVradiation reaching the earth’s surface. UVA radiation is harmful to humans anddamages skin and plays a major role in wrinkling. At the same time, UV lightcan be used to combat bacteria and viruses like COVID-19. When the pathogenspass through the UV light they break up and turn into a harmless moisture.

(Video) UV Lights in HVAC Systems - Does it Kill Mold?

The size of the HVAC system will determine where to place the UV lights to kill the mold and bacteria. In most residential homes, the germicidal UV light bulb will be placed within the evaporator coils. This is the area where the bacteria tends to build up and the intergalactic warfare will take place. At this point the strong ultraviolet light will blast apart the pathogens that were passing through your air ducts.

Do I Need a UV Light For My Air Conditioner? (3)

Soundslike something supernatural, but does it really work?

For HVAC systems this has been tried and tested. In fact, there are manytypes of UV lights being sold by air conditioner installers like the REKOLighting R2000 air purifier. Each brand claims to be the best UV light for HVACbut no one will ever really know how one outperforms the next. UV lighttechnology has become so popular that health care providers are beginning toadopt it for keeping a facility germ and virus free.

David J. Brenner, Ph.D, is a Professor of Radiation Biophysics at Columbia University. In 2018, he and his team tested a specific type of ultraviolet light which can kill the flu virus in the air. LightStrike™ Germ-Zapping™ Robots are already being used in many hospitals across the globe. It can disinfect an entire patient room in as little as 20 minutes. It’s truly a revolutionary way to keep hospitals and health care facilities free of dangerous pathogens.

(Video) Installing a UV Light and Air Treatment System in an HVAC Unit! STEP BY STEP

Isn’t UVlight dangerous?

Conventional UV light can penetrate and damage the skin and cause cataracts. The technology being used by the robot cleaners uses Far-UVC which does not penetrate the skin. For UV light placed in an air handler there is little chance that you will even see it let alone penetrate your skin. The HVAC UV light kit is placed deep inside the evaporator coils, far from any skin exposure. During the HVAC UV light installation, technicians make it their priority to make sure there is absolutely no exposure to the ultraviolet rays. Only the air, which circulates your home will be under UV exposure. This will allow your air handler to function as an air purifier, keeping out mold, bacteria, and viruses from circulating throughout your home.

Do I Need a UV Light For My Air Conditioner? (4)

Are thereany other HVAC UV light benefits?

Ultraviolet light for air conditioners is safe and brings many other added benefits. Some of these benefits include, keeping your evaporator coils super clean. Very often the grille covering the coils gets clogged with dust and mold that will cause your air-cooling system to not perform as well as it should. This means that the HVAC efficiency will be lower, and your system will need to work harder and use more energy. This means higher electric bills, especially during the summer months when temperatures in a home are at the highest. Installing UV light for ac units increases efficiency and can significantly lower energy bills. Keep in mind that when your cooling system uses less energy, not only does it save you money, it helps the environment as well.

Another added benefit is that you won’t have to clean your evaporatorcoils with harsh chemicals. When the grille and the coils get filthy, they arecleaned by using a foam agent. Some of these cleaning agents contain manyharmful chemicals like diethylene glycol monoethyl ether, 2-butoxyethanol, andliquefied petroleum gas. Avoiding such chemicals would be highly beneficial tothe inhabitants of the home. No one really knows how long it takes for thesechemicals to completely exit the cooling system. The UV light will function asan air purifier for the air circulating in your home and keep your system cleanand running efficiently for many years to come.

(Video) What do UV Lights on an AC systems do? Do UV bulbs for AC systems work? Jon Wayne Service Company

Do I Need a UV Light For My Air Conditioner? (5)

What isthe cost of a UV light for air conditioners?

There are two parts to this question. The actual cost of the UV lights ranges from $70 to $500 on Amazon. We are going to review three UV lights on Amazon. The LSE Lighting UVC 36 is priced at $72 and comes with a 36W High Power UVC bulb. The pros are its low price and the cons are that it comes with poor installation instructions. The RGF Reme Halo is priced at $449.97 on Amazon. The pros are that it received close to a five-star rating and the cons are that it’s expensive. The Reko Lighting R2000 comes in at a pretty competitive price of $99.95. It gets rid of mold, mildew, and other bacteria and uses very little electricity. The installation for R2000 takes just 15 minutes. Keep in mind, that if you’re, handy these can be easily installed by yourself. However, if you’re unfamiliar with cooling systems, hire an HVAC UV light installation expert. The last thing you would want is to install incorrectly or perhaps even worse damage your central air conditioner. If you choose to hire someone, make sure they are trustworthy and have experience with UV light for duct-work.

FinalWords

Having UV lights installed in your HVAC system may seem at first unnecessary. Who needs the added expense, and does it really work? Relatively speaking it depends on who is occupying the facility or home. Take for example someone who is highly sensitive to seasonal allergies and especially mold. If installing UV lights into your air handler can help them breathe or sleep better, then it’s worth it. If you’re the administrator of a nursing home and your residents are at the greatest risk for the coronavirus it would be wise to entertain the idea of having multiple UV lights installed into the facilities duct work. It does not cost anything to have an HVAC UV light installer come down and give you a quote. UV lights cannot only help keep germs, bacteria, mold, mildew, and viruses out of your ducts, they allow your system to perform at its best and keep energy bills low too.

FAQs

Is it worth getting UV light in HVAC? ›

UV light in HVAC units can be most effective in killing mold and mildew. Contact with mold can be dangerous for your unit. In addition, it can also be bad for your indoor air quality and even cause allergies in some people.

How long do ac UV lights Last? ›

Typically, a UV lamp being used primarily to disinfect the air circulating through a home or small office should be replaced every 9000 hours or approximately every 12 months.

Does UV light damage ac coils? ›

The UV lights can also damage plastics within the air handler, deteriorate the drain pan and destroy flexible ducting as well.

Where should I install UV light in HVAC? ›

The best location to install a UV light if in the A-shape is above, center, and downstream of the coil. This allows the A/C ultraviolet light to shine the most amount of light on the coil, while killing some of the airborne microbes. The second best location is below the evaporator coil (if there is room).

Do UV lights use a lot of electricity? ›

How Much Electricity Does A UV Light Use? A typical household uses about 1 kWh per day. That means that a single UV light bulb would only cost around $0.10-$0.15/day to operate. If you were to purchase 10 UV light bulbs, you could save hundreds of dollars each year.

Does UV light prevent mold? ›

UV light sends out short wavelengths of energy that penetrate mold. By doing so, it breaks up the DNA inside to clean and eventually inactivate it. To be effective in eliminating the mold, bacteria, or mildew, it needs to be exposed directly to the UV-C light.

What does a UV light do for an air conditioner? ›

UV HVAC light systems, also called germicidal air purifiers, can effectively sterilize almost 100% of germs, viruses, mold spores, bacteria, fungi and other harmful microorganisms as they pass through your HVAC system.

Does UV light in HVAC produce ozone? ›

Do UV Air Purifiers produce increased ozone? EPA: According to two studies, operating UV lamps installed in HVAC systems to irradiate the surfaces of air-handling units does not result in increased concentrations of ozone.

How do you know if your UV bulb is bad? ›

If it turns a violet shade, the UV light bulb is functioning. If it remains primarily white, the UV light bulb might be defective. If you are unsure, transfer the bulb to another light fixture and try the same test again. If it still fails, the light bulb is not good.

What is the smell after using UV light? ›

The smell after UV disinfection is sometimes described as that of burning hair or the pungent odor of rotten eggs or garlic. The latter smell is characteristic of mercaptans.

Do HVAC UV lights smell? ›

When the UV Lamp is not installed as it should be, it can destroy items around the lamps such as the duct board. This can deteriorate over time due to the UV rays coming through the system itself. When this happens it can start to blow an unpleasant smell into the home while the AC is running.

What size UV light do I need for my HVAC system? ›

That's about 1,550 square inches of surface area. The best UV lights for HVAC have 15+ W of power. The single best unit you can see in the table below – the #1 OdorStop OS144PRO – can generate as much as 36 W of power. All that power goes into creating ultraviolet light which, in turn, eliminates mold.

When should I replace my HVAC UV light? ›

recommend: removing and replacing UV lamps every 9,000 hours or 1 year (annual preventative maintenance [PM] schedule). Most quality lamps will emit at least 80% of their original UV-C output at the end of one year.

Where is the UV light located? ›

Ultraviolet radiation lies between visible light and X-rays along the electromagnetic spectrum. UV "light" spans a range of wavelengths between about 10 and 400 nanometers.

Do UV lights go in supply or return? ›

Ultraviolet lamps can be easily added to an existing forced air system. Lamps can be installed either in the main supply or return duct of a central heating or air system. The best installation location for a UV lamp is downstream of the air conditioning coils on the supply side of the heating/cooling system.

Can I use my phone as a black light? ›

How To Turn Your Phone Into A Black Light! - YouTube

Can UV cause fire? ›

High-temperature filaments emit some energy in the UV region. Small amounts of other elements can be mixed into the quartz, so that the doped quartz blocks harmful UV radiation. Because the halogen lamp operates at very high temperatures, it can pose fire and burn hazards.

Is a black light a UV light the same? ›

Black lights emit a type of ultraviolet radiation called UVA, which is invisible to the human eye. They are often used in industry, nightclubs or amusement parks to make things glow. This glow is the energy emitted by the light being converted into visible light by particles called phosphors.

What light kills fungus? ›

#1 – Ultraviolet Light Disinfects Everywhere the Light Touches. Ultraviolet (UV) Light is a proven technology that has been killing mold, fungus, bacteria, and viruses since the beginning of time.

How do you neutralize mold? ›

Use undiluted white vinegar on hard surfaces in kitchens and baths. A bleach solution also works to kill mold. Mix one cup of bleach in a gallon of water, apply to the surface and don't rinse. Mix a 50/50 solution of ammonia and water.

What UV wavelength kills mold? ›

A shortwave ultraviolet light in the range of 280 to 100 nm can help kill mold and prevent its growth.

Are UV air purifiers worth it? ›

Yes, SOME UV air purifiers really work. Numerous health studies have shown that UV-C light in a specific wavelength and duration very effectively inactivates viruses, bacteria, mold, mildew and fungi by breaking down their DNA or RNA, leaving them unable to perform vital functions or reproduce.

Is ozone from UV light harmful? ›

Understand the potential risks from exposure to excessive amounts of ozone gas or UV light as described below include irritation to breathing passages (that is nose, throat, and lungs), particularly for those who have respiratory sensitivity such as asthma or allergies.

Does UV light damage metal? ›

Metals are almost entirely unaffected by UV because of the availability of free electrons to absorb photon energy without undergoing energy transitions or bond dissociation.

Which is better ozone or UV? ›

The short answer: Ozone is a more powerful oxidizer in swimming pool water than ultraviolet (UV-C). In fact, UV is not an oxidizer at all! We'll also talk about how they work together to make the most powerful pool sanitizer on the market.

Is UV light in air purifiers harmful? ›

The light itself from the air purifier is safe, as you're not normally exposed to it. However, there are other risks that UV air purifiers have. Air exposed to UV light can create ozone. This is just an unstable oxygen molecule, but it can have serious effects on human health.

What does ozone smell like? ›

Ozone has a very characteristic pungent odor, sometimes described as like chlorine bleach, and it can sometimes be detected after lightning strikes or during electrical discharges. Individual humans vary in their ability to smell ozone; some people can smell it at levels as low as 0.05 ppm.

How do you know if your UV filter is working? ›

If not ATP, then what's the best way to validate a UV Sanitizer?
  1. Place the dosimeter card inside a CleanSlate UV sanitizer.
  2. Run the 20-second disinfection cycle.
  3. Take the card out of the CleanSlate UV sanitizer and compare it to the reference codes to know the UV exposure achieved.
31 Mar 2022

How do you test UV light? ›

Testing UV-C Lights - YouTube

Why do UV lights look purple? ›

The visible tail looks "purple" because the "red" receptors in your eye have some sensitivity at the shortest visible wavelengths. The visible leakage from a black light stimulates both "red" and "blue" receptors in your eye, and you perceive purple.

Do UV lights cause ozone? ›

No, UV-C light does not produce ozone. However, the shorter Ultraviolet-V (UV-V at 185 nanometers) wavelength of UVV light actually generates ozone. This occurs because UVV light reacts with oxygen to break it into atomic oxygen, a highly unstable atom that combines with oxygen to form O3 (Ozone).

Does UV remove odor? ›

Filtration systems armed with short-wavelength ultraviolet (UV-C) waves reduce dust, pet dander, odors and germs. How does it work? Since the mid 20th century, UV-C light has been used as a proven sanitizer, sterilizing work facilities, drinking water, wastewater and medical environments.

Can you touch UV bulbs? ›

NOTE: Do not touch the glass portion of the germicidal UV lamp with bare hands. Use cotton gloves to avoid skin oils that will harm the UV lamp. NOTE: Use only original American-Lights® UV lamps. Other lamps will be incompatible and may damage the air cleaner.

Do furnaces produce ozone? ›

Electrical Burning or Smell of Ozone

When your furnace is giving off this smell, it means that it's overheating. It will use up more electricity to drive through the resistance. This increased use of voltage causes too much heat buildup in the motor.

How much does it cost to buy a UV light? ›

The Cost Will Range Between $100 to $500 For A UV Sanitizer

The average cost for a germicidal UV light for an HVAC system will range from $100 to $500. The higher priced UV lights usually have more wattage, more light bulbs, and advanced features.

Why does an air conditioner need to sit for 24 hours after you install or move it? ›

It's necessary for the oils in the compressor to settle before turning the unit on, not doing so can affect the performance of the unit.

Does whole house UV air purifier work? ›

Whole-house air purifiers

Models that include germicidal UV lamp technology to irradiate bacteria and mold spores in the air stream or on the filter cost even more; however, again, research proving they work is lacking. It's also possible to add a UV light system to your HVAC system, but they aren't cheap.

Do UV lights lose their effectiveness? ›

Like your average light bulb, UV lights have a finite life span that requires them to be changed on a regular basis. As these lights operate, they slowly lose their effectiveness as a germicidal agent by about 15 percent each year.

How long does a UV water filter last? ›

A UV lamp lasts about 9,000 hours or 375 days (if you run it all the time). Clean the quartz sleeve. The glass quartz sleeve that surrounds the lamp needs to be clean for the UV lamp to work effectively.

What is the most common UV lamp on the market? ›

Chapter 29 UV Gel (Book #3)
AB
What is the most common UV lamp on the market?9-watt
UV gel products are usually packaged in opaque pots orsqueeze tubes
The tacky surface left on the nail after a UV gel has cured is called the ______ layer.inhaibition
17 more rows

What does UV light look like? ›

What is UV Light? Ultraviolet (UV) light has shorter wavelengths than visible light. Although UV waves are invisible to the human eye, some insects, such as bumblebees, can see them. This is similar to how a dog can hear the sound of a whistle just outside the hearing range of humans.

Is a purple light the same as a black light? ›

Purple LEDs are ultraviolet and they can be used to create a blacklight effect. Though you can make a brighter purple by mixing red and blue on an RGB LED, it won't have the same effect as the ultraviolet lights used in counterfeit bill detectors and for revealing security holograms on credit cards and driver licenses.

How do you connect a UV light? ›

UV Light Bulb | UV Lamp Replacement : How to Change

How long do UV lights for AC last? ›

Typically, a UV lamp being used primarily to disinfect the air circulating through a home or small office should be replaced every 9000 hours or approximately every 12 months.

Does UV light damage AC coils? ›

The UV lights can also damage plastics within the air handler, deteriorate the drain pan and destroy flexible ducting as well.

How do you install a Honeywell UV Air Purifier? ›

Installing the UV Air Purifier - YouTube

Are UV air purifiers worth it? ›

Yes, SOME UV air purifiers really work. Numerous health studies have shown that UV-C light in a specific wavelength and duration very effectively inactivates viruses, bacteria, mold, mildew and fungi by breaking down their DNA or RNA, leaving them unable to perform vital functions or reproduce.

Do HVAC UV lights create ozone? ›

Do UV Air Purifiers produce increased ozone? EPA: According to two studies, operating UV lamps installed in HVAC systems to irradiate the surfaces of air-handling units does not result in increased concentrations of ozone.

How much does a UV lamp cost? ›

How Much do UV Lights Cost?
TypeLight CostInstallation Cost
Coil Sanitizing Lights$60-$285+$100-$225
Air Sanitizing Lights$80-$400+$150-$295
21 Apr 2022

Can you install UV light in return duct? ›

Where to Install UV Lights for Best Results. Depending on your needs and the system you choose, you may install the UV lights directly in the air handler. In addition to the air handler, you may choose to install them in the air return or in strategic areas throughout the ductwork.

Do you need an air purifier if you have HVAC? ›

Air purifiers are useful at eliminating the smaller particles that may slip through a filter. Since filters have an upper limit on their strength in a residential HVAC system, air purifiers can help to provide more thorough air cleaning, removing more than 98% of contaminants if combined with the right set of filters.

How do you know if you need an air purifier? ›

Signs Your Home Needs an Air Purifier
  1. You Can't Stop Sneezing. If you are continually sneezing, then you may have an accumulation of dust pollen, pet dander and other particles in your home. ...
  2. Your Air Is Stuffy. ...
  3. You Have Dust Mites. ...
  4. You Snore Loudly. ...
  5. Air Purifiers Help Sick Family Members.
20 Aug 2020

Is UV light in air purifiers harmful? ›

The light itself from the air purifier is safe, as you're not normally exposed to it. However, there are other risks that UV air purifiers have. Air exposed to UV light can create ozone. This is just an unstable oxygen molecule, but it can have serious effects on human health.

Which is better ozone or UV? ›

The short answer: Ozone is a more powerful oxidizer in swimming pool water than ultraviolet (UV-C). In fact, UV is not an oxidizer at all! We'll also talk about how they work together to make the most powerful pool sanitizer on the market.

Why does room smell after UV light? ›

With high levels of keratin and cysteine in the dust particles, the breaking of chemical bonds in both molecules causes the formation of sulfur containing thiols. With the low threshold of human detection to smell, thiols are the reason why UV devices cause a potentially unpleasant odor in rooms after disinfection.

Do HVAC UV lights smell? ›

When the UV Lamp is not installed as it should be, it can destroy items around the lamps such as the duct board. This can deteriorate over time due to the UV rays coming through the system itself. When this happens it can start to blow an unpleasant smell into the home while the AC is running.

What size UV light do I need for my HVAC system? ›

That's about 1,550 square inches of surface area. The best UV lights for HVAC have 15+ W of power. The single best unit you can see in the table below – the #1 OdorStop OS144PRO – can generate as much as 36 W of power. All that power goes into creating ultraviolet light which, in turn, eliminates mold.

Is a black light a UV light the same? ›

Black lights emit a type of ultraviolet radiation called UVA, which is invisible to the human eye. They are often used in industry, nightclubs or amusement parks to make things glow. This glow is the energy emitted by the light being converted into visible light by particles called phosphors.

Do UV lights go in supply or return? ›

Ultraviolet lamps can be easily added to an existing forced air system. Lamps can be installed either in the main supply or return duct of a central heating or air system. The best installation location for a UV lamp is downstream of the air conditioning coils on the supply side of the heating/cooling system.

Where is the UV light located? ›

Ultraviolet radiation lies between visible light and X-rays along the electromagnetic spectrum. UV "light" spans a range of wavelengths between about 10 and 400 nanometers.

When should I replace my HVAC UV light? ›

recommend: removing and replacing UV lamps every 9,000 hours or 1 year (annual preventative maintenance [PM] schedule). Most quality lamps will emit at least 80% of their original UV-C output at the end of one year.

Videos

1. Can UV Light Kill Virus? HVAC UV Light Worth It?
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2. My HVAC uv Light installation in my ac, my review on it working
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3. 7 Best HVAC UV Lights For Air Purification
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4. Do I Need a UV Light?
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5. Should I get UV lights to kill AC Mold?
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6. Best UV Light filter of 2022 DIY Ultra Violet Purifier Kills viruses and Covid-19 Step by step
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