UV Disinfection of Air in Building Services
It has been proven that UV light kills the germs in office ventilation systems responsible for workers getting ill.
In the study, researchers from McGill University in Montreal, Canada installed UV systems in the ventilation systems of three modern, sealed office buildings. Following almost a year of trials, the researchers noticed a significant reduction in work-related illnesses such as headaches, throat irritations and respiratory problems – known collectively as ‘Sick Building Syndrome’.
They concluded that UV is an effective way of reducing Sick Building Syndrome and should be seriously considered by building operators. The scientists estimate that the initial costs of installing UV would soon be recouped by the savings made as a result of reduced staff absences.
One of Hanovia’s installations was with a testing and inspection company based in Surrey. The company’s health and safety manager had noticed an increased incidence of colds and flu among staff in one section of the building. He contacted Hanovia, who installed a UV system in the air handling unit of the building’s air conditioning system. Since the installation the number of staff falling ill has fallen by over 40%.
Compact and easy to install within existing ductwork, Hanovia UV systems are designed for continuous use and can treat air flows of up to 2 m
3/h. They expose all air passing through the system to UV at wavelengths which kill any airborne microorganisms present. Silent in operation, they use no chemicals of any sort and are virtually maintenance-free. The only requirement is that the UV-emitting arc-tube is replaced twice a year. This is a simple operation and can be carried out by general maintenance staff
More and more companies and public sector employees are choosing to install UV systems in air ducts.
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