Ultraviolet Germicidal Irradiation is a Proven Method for Effectively Inactivating Mold, Bacteria, and Viruses

The C Wavelength of the UV Spectrum targets the DNA of Microorganisms,
destroying their cells and making replication impossible.

Germicidal UVC Solutions

Ultraviolet germicidal irradiation (UVGI) is a disinfection method that uses short-wavelength ultraviolet light (UVC) to kill or inactivate microorganisms. UVC improves indoor air quality (IAQ) while increasing operational efficiency, reducing maintenance costs and saving energy.

UVC light installations for HVAC systems can be applied in two ways: in-duct airstream disinfection and air handler component surface disinfection.

Airstream and Coil Disinfection

High-output UVC lamps are designed to deliver UV doses for airstream disinfection. In-duct airstream applications require minimal space and are easy to install in both existing and new equipment. These systems disinfect air as it passes through the HVAC system and reduce airborne infectious microorganisms that spread illness.

UVC for coil disinfection utilizes coil-mounted fixtures that target the coils and drain pans of the HVAC system.

UVC lamps target cooling coils, condensation pans, and filters. This allows for healthy air supply by destroying bacteria and mold that grow on the moist surfaces in tough-to-reach areas such as grooves, fins, seams, and edges.

Based on your current equipment and space usage, Donnelly Mechanical will determine the best UVC application for your system.

Before and After UVC on Coils

Benefits of UVC for HVAC

Proven Technology, Backed By Science

Energy Savings and Cost Effective

Improves Indoor Air Quality

Safe and Healthy

Measurable and Proven Results

The SAFEST Mechanical Contractor in New York City

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I would like to take the time to commend your amazing staff. I’ve had the pleasure of working with the Donnelly team on our recent move to 3 World Trade Center. I was very hesitant about working with a new mechanical contractor but I can confidently say my hesitations were put at ease immediately. The Donnelly team has taken their time to educate and guide me, and make repairs on many issues that were above and beyond their maintenance scope.  Joe, Ravi and their colleagues have shown a top notch level of expertise.  We are very fortunate to have such a knowledgeable team of HVAC technicians at our disposal.

— Facilities Coordinator Mckinsey & Company Inc.

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