With the increasing concern for indoor air quality, homeowners and building managers are turning to ultraviolet lights to improve air purification in their HVAC systems. UV lights kill or neutralize harmful pathogens such as mold, bacteria, and viruses circulating through the air. However, with various types and models available in the market, it can be overwhelming to determine the best UV light for your HVAC system. We’ll explore some of the best options.
Coil-Mounted UV Lights
Coil-mounted UV lights are installed directly on the evaporator coil of the HVAC unit. The UV light works by shining on the coil and killing mold or bacteria growing on the surface. This prevents the mold from spreading throughout the system and into the air circulating through the building.
The UV light should be installed by a professional to ensure it is compatible with the existing HVAC system, positioned correctly, and does not interfere with the function of the HVAC unit. To ensure the UV light continues to work effectively, follow manufacturer guidelines for maintaining and replacing the UV light.
Coil-mounted UV lights are highly efficient in controlling airborne contaminants. They can eliminate up to 99% of bacteria, viruses, and other harmful particles that cause respiratory issues. This makes them an excellent choice for public places where air quality is crucial.
Once installed, this type of UV light can last up to two years before needing replacement. This makes them a cost-effective solution for homeowners and business owners. They are also an ideal choice for homes and schools because they are safe to use. They work by emitting a wavelength of light that is harmful to bacteria, viruses, and other pathogens but harmless to humans.
Air Sanitizing UV Lights
Air sanitizing UV lights work by emitting ultraviolet light at a wavelength of 254 nanometers, which is lethal to microorganisms. When the air passes through the HVAC system, it is exposed to UV light, which kills any microorganisms present in the air. This process is known as ultraviolet germicidal irradiation (UVGI).
Typically installed in the HVAC ductwork or air handler, they can be installed as a stand-alone unit or integrated into the existing HVAC system. The UV light is mounted to shine directly onto the surfaces of the air handler unit or ductwork, where microorganisms are likely to accumulate.
Studies have shown that UVGI can reduce the concentration of airborne bacteria and viruses by up to 99%. This can help prevent infectious diseases from spreading in homes, offices, and other indoor spaces.
Air sanitizing UV lights are also environmentally friendly. They do not produce any harmful byproducts or chemicals orrequire any additional energy to operate. They use the existing airflow in the HVAC system to disinfect the air.
PCO UV Lights
Unlike traditional air sanitizing UV lights, which use ultraviolet germicidal irradiation (UVGI) to kill microorganisms, PCO UV lights use a process known as photocatalytic oxidation to eliminate pollutants, odors, and volatile organic compounds (VOCs) from the air.
PCO UV lights use a photocatalyst material, usually titanium dioxide, to break down pollutants in the air. When the UV light shines on the photocatalyst material, it produces highly reactive oxygen species (ROS), which react with the pollutants and break them down into harmless substances such as water and carbon dioxide.
One of the main advantages of PCO UV lights is their ability to eliminate a wide range of pollutants from the air. This includes microorganisms such as viruses and bacteria as well as VOCs, and other harmful chemicals. This makes PCO UV lights ideal for use in homes, offices, and other indoor spaces where air quality is a concern.
Upper-Air UV Lights
Upper-air UV lights work by using UVGI to kill microorganisms in the air. Unlike traditional air sanitizing UV lights installed in the HVAC ductwork or air handler unit, upper air UV lights are installed above the occupied space. This allows the UV light to irradiate the upper portion of the room, where it can effectively kill airborne pathogens.
Upper-air UV lights work by drawing air into the UV lamp, which is exposed to the UV-C light. This light kills microorganisms such as viruses and bacteria, rendering them harmless.
How Home Comfort Services Can Help
At Home Comfort Services, we are a top-notch provider of heating, cooling, and indoor air quality services. We specialize in HVAC installation, repair, and maintenance services to ensure your home is comfortable year-round. In addition to our HVAC services, we offer plumbing, electrical, and home automation services, making us a one-stop shop for all your home comfort needs. Contact Home Comfort Services today for more information.
