There has been a lot in the news lately about how ultraviolet (UV) lights can kill viruses and bacteria. Studies have shown that low intensity of UV light can improve air quality and kill airborne allergens, dangerous microbes, mold spores, viruses, and bacteria. This is especially true in hot and humid climates such as Polk and Highland Counties in Central Florida. Some HVAC companies offer the service to install an HVAC UV light in your HVAC system’s air handler to improve the air quality in your home.
Safe UV Light
Ultraviolet light can be dangerous at certain levels. It can cause cancer and harm the eyes. However, low doses of UV light called far-UVC light does not damage human tissue. This type of UV light is low enough to be safe but strong enough to kill viruses, bacteria, allergens, dangerous microbes, and mold spores. It has been known for decades that broad-spectrum ultraviolet light having a wavelength of 200nm to 400nm (nanometers) is safe for humans. This strength of UV light is effective in destroying the bonds of molecules that hold viruses, bacteria, dangerous microbes, allergens, and mold spores together. In fact, this type of UV light has been used in hospitals to routinely clean surgical equipment.
What is an HVAC UV Light?
An HVAC UV light is a light that’s installed in the HVAC system’s air handler near the coils. This is so that the air passing through the coils can be decontaminated or disinfected by the UV light. It’s placed by the coils, so harmful air doesn’t get through the vents to circulate throughout the home. The HVAC UV light is more effective in climates where there is high humidity, such as Central Florida. An HVAC system’s coils can easily get wet from condensation if areas of high humidity. Airborne mold spores, allergens, viruses, bacteria, and dangerous microbes love humidity. So the UV light kills them before they become airborne.
How Effective Are They?
There have been tests performed and studies done that have shown significant improvement in the air quality after having an HVAC UV light installed. HVAC UV lights are very effective for people with allergies. They are proven to reduce mold spores, dangerous microbes, viruses, and bacteria in the air as well. They are not one hundred percent effective. However, if you have allergies or underlying lung problems, they can definitely help with your symptoms or help prevent illness.
What is the Cost of HVAC UV Lights?
Getting an HVAC UV light installed can be a great return on investment in your health. The cost depends on the size of your HVAC system. For current rates, contact us.