Using UV germicidal lights in connection with your home’s HVAC system is a way to disinfect the air inside without using chemicals.
More than 100 years ago it was discovered that ultraviolet light kills germs. Since its discovery, UV light has been used to sterilize hospitals and water, and even help nail polish dry more quickly. But what about it being able to improve the air quality of your home. Is it a gimmick or is there actual evidence to support the claim?
Understanding How UV HVAC Lights Work
Mold and bacteria is a common concern when it comes to HVAC systems. According to the NCBI, fungal contamination often contributes to illnesses such as infectious diseases, asthma, allergic rhinitis, and hypersensitivity pneumonitis. However, UV lights have been proven to help eliminate many types of bacteria, germs, fungi, pathogens and viruses and can thus be used in a wide range of applications including air purification.
Ultraviolet light is germicidal, which means it is able to break down the DNA in bacteria, viruses and other airborne contaminates and thus keep them from growing. The UV light in the sun does this to the air outside. Using UV germicidal lights in connection with your home’s HVAC system is a way to disinfect the air inside without using chemicals.
There are two types of UV lights for HVAC systems:
- Coil Sterilization – A UV light is installed inside the return air duct that sterilizes the air handler coil. It runs constantly and is the most common type of HVAC UV light.
- Air Sterilization – This involves a complete Ultraviolet light unit that sterilizes moving air. It is installed in the return air duct and cycles on with the air handler blower.
It is important to understand that UV lights are a smart investment when installed correctly. That’s why you should hire a trusted HVAC technician to make sure the UV lights are put in the correct places, and that the intensity and number of UV lamps is correct.
Contact Thomas Hoffmann Air Conditioning & Heating LLC
At Thomas Hoffmann Air Conditioning & Heating LLC, we have over 30 years of experience in the HVAC industry. Our owner, Thomas Hoffmann, is master technician and mechanical engineer and certified energy auditor. This experience gives us an advantage over our competition. Call us today at (314) 471-7625 or fill out our online contact form to schedule a free estimate.