Germicidal UV refers to ultraviolet light with a wavelength between 200 and 280 nanometers that can destroy bacteria, viruses, and other microorganisms by disrupting their DNA. Germicidal UV lamps can be installed inside HVAC systems to irradiate the air as it passes through the system. This can help to disinfect the air and reduce the spread of airborne pathogens. The benefits of using germicidal UV in HVAC systems include improved indoor air quality, reduced transmission of airborne diseases, and improved system efficiency by reducing the buildup of biological growth on HVAC components.

Germicidal UV can be harmful to humans if they are exposed to it directly, but when used properly inside HVAC systems, the UV light is contained and does not pose a risk to occupants. Germicidal UV lamps can be retrofitted into existing HVAC systems, although the installation should be done by a professional.

The potential drawbacks of using germicidal UV in HVAC systems include the initial cost of installation and maintenance, as well as the potential for increased energy consumption due to the additional load of the UV lamps. Germicidal UV lamps have a lifespan of around 9,000 to 12,000 hours, after which they will need to be replaced.

Germicidal UV can have a positive impact on HVAC system performance by reducing the buildup of biological growth on HVAC components and improving system efficiency.