Light in the ultraviolet-C (UV-C) germicidal spectrum provides nonstop protection for HVAC/R systems against efficiency-robbing mold and bacteria growth. Yet, only about 20 to 30 percent of building engineers enjoy this ongoing protection because they don’t replace their UV-C lamps. Nothing lasts forever. Like any lamp, UV-C...
Light in the Ultraviolet-C (UV-C) germicidal wavelength is a great means by which to improve a building’s energy efficiency and indoor air quality (IAQ), while also reducing maintenance. UV-C lamps installed either inside an HVAC system or on the wall in a room’s upper air...
Knowledge of UV-C goes back well over 100 years, having gone through various phases of development. Here are some pivotal points in the century-long history of the various applications of UV-C. ...
Light in the Ultraviolet-C (UV-C) spectrum has proven effective in killing virtually all known microorganisms, making it the ideal solution for cleaning HVAC cooling coils and decontaminating the upper air in public spaces such as schools and hospitals. However, the potency of UV lamps means...
UV-C systems provide three levels of benefits when applied to HVAC systems.UV-C energy eliminates and/or prevents the buildup of organic material on the surfaces of cooling coils, drain pans, and interior duct surfaces. This improves airflow, returns and maintains the heat-transfer levels of cooling coils...
Many factors can impact a building’s environmental performance and the consumption of energy, water and materials. Manufacturers of building systems design performance around a specific, optimal condition. Over time, these performance standards will deteriorate if nothing is done to preserve the original “as-built” condition. This...
ASHRAE recently released two position documents (links listed below) examining the health consequences of using filtration and air cleaning technologies in HVAC systems. Our own Dean Saputa is an active member of one of the committees responsible for this research (the ASHRAE Filtration and Air...
We are in the midst of an HVAC revolution as the number of mechanical engineers specifying UV-C in all building types is mushrooming at historic levels.The ultraviolet-C (UV-C) wavelength (254nm) was promoted in the mid-1990s primarily to improve indoor air quality by preventing microbial buildup...