UVC for Inactivation of Legionella Pneumophila

What is Legionnaires' disease and how does it spread through HVAC units?

Legionnaires' disease is a severe form of pneumonia caused by the bacterium Legionella pneumophila. It was named after an outbreak in 1976, during a convention of the American Legion in Philadelphia, where the disease was first identified.

Legionella In Summer Months

Historically, starting in June and peaking in July, large cities such as Chicago and New York see a significant increase in Legionella cases and deaths. 

Legionella and HVAC Systems

Legionella bacteria are commonly found in natural water sources like lakes and streams. They thrive and multiply in warm, stagnant water environments. Legionnaires' disease is typically contracted by inhaling small droplets of water containing the Legionella bacteria, rather than through person-to-person transmission. HVAC units, particularly cooling towers, have been associated with outbreaks of Legionnaires' disease.

Legionella is highly susceptible to UVC and is inactivated at a high rate even at low doses.

Visit our website to read more about how the bacteria can spread through HVAC systems and how Lumalier's in-AHU/in-duct UVC products can inactivate the bacteria in the air to help mitigate the spread.

How Can Lumalier Help?

In-Duct/In-AHU fixtures, such as Lumalier’s AR Series, are engineered to be customizable to fit any size AHU and address any level of pathogen reduction. With an appropriate dosage, UVC can inactivate aerosolized Legionella bacteria in HVAC systems and mitigate the spread of the bacteria in the air.