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New ASHRAE Handbook Features Chapter on Ultraviolet Germicidal Irradiation


The American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) recently released the 2011 ASHRAE Handbook – HVAC Applications. This important reference book has over 60 chapters addressing a broad range of HVAC applications, including the latest technologies available for HVAC&R engineers.

The 2011 edition includes a new chapter titled “Ultraviolet Air and Surface Treatment” that has received much attention in the HVAC&R community. The chapter covers topics from HVAC system surface treatments to studies on airstream disinfection and room surface treatments. Dave Witham, UltraViolet Devices’ (UVDI) Vice President of Technology, was an instrumental team member in developing this important chapter.

The new chapter provides ASHRAE guidance for recommended levels of UV intensity appropriate for surface disinfection applications. According to the handbook, “UVGI can be applied to HVAC systems to complement conventional system maintenance procedures.” It goes on to discuss the benefits of low UV-C irradiance applied to cooling coils and drain pans resulting in a highly cost effective method of preventing mold and bacteria growth on system components.

As a leading manufacturer of UV-C disinfection systems, UltraViolet Devices has been on the forefront of promoting the benefits of properly designed and engineered UVGI systems. “I am pleased to have contributed to this important new chapter in the 2011 ASHRAE Handbook,” reported Dave Witham from UVDI. “UV-C technology provides many benefits including reduced energy consumption in HVAC systems, improved indoor air quality (IAQ), lower maintenance costs, elimination of environmentally unfriendly cleaning chemicals and improved efficiency and life of the systems,” he continued.

To learn more about UV-C or UVGI technologies please visit, email or call (877) 787-3882.

About UltraViolet Devices, Inc.
UVDI is a leading manufacturer and supplier of UV-C products for air, surface and water disinfection. Under the ALTRU-V® brand, UVDI markets a full line of products for the HVACR market designed to reduce energy consumption and lower maintenance costs while delivering cleaner, healthier air. Under UVDI’s Sparks Technology™ brand, the company manufactures gas phase filtration products for use in commercial and industrial applications worldwide.



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