Article
Don’t look now, but those new light fixtures in your lab, office or 
cafeteria may be doing a lot more than illuminating the space. <br><br>They
 may also be actively disinfecting your immediate surroundings, 
suppressing the growth of a wide range of common bacteria, molds, fungi 
and yeast that can lead to individual and public health risks.

Lighting to Help Keep You Safe and Clean

James R. Dukart
Don’t look now, but those new light fixtures in your lab, office or cafeteria may be doing a lot more than illuminating the space.

They may also be actively disinfecting your immediate surroundings, suppressing the growth of a wide range of common bacteria, molds, fungi and yeast that can lead to individual and public health risks.  

That is the promise of new technology from Hubbell Lighting that combines white and narrowband 405-nanometer visible light to both illuminate and disinfect, unobtrusively attacking pathogens suspended in air or at rest on a variety of surfaces, materials and objects.

Hubbell’s new SpectraClean disinfection luminaires do so by bombarding bad actors including the likes of MRSA, Salmonella, Listeria and E.Coli biologic agents with light that penetrates their cell walls and creates destructive oxygenation that accelerates their disintegration.

Since the light used is outside the UV spectrum, it is not harmful to humans, plants or animals and won’t degrade inanimate materials. Thus the disinfection can take place continuously, in occupied or unoccupied spaces.

Key target markets include the food and beverage industry and the hospitality industry — everything from manufacturing, packaging, transporting and storing food and beverages to the hotels, bars, restaurants, dining halls, conference centers, stadiums and other commercial applications where food and beverages are served to the public.

SpectraClean lamps are equipped with integrated wireless control support for operation in any of four different modes: Blended, where the luminaire is providing both continuous visible light and standard disinfection; Blended Plus to enhance white light with higher dosages of 405-nm light for accelerated disinfection; Independent to allow for either standard white light of no light but enhanced disinfection while space is not being used (e.g. a cafeteria overnight during shutdown), or Dedicated, where accelerated disinfection is the main goal, without ambient lighting needed.

The technology is available in multiple standard lumen packages, including architectural and lensed troffers, striplights and linear vaportite lamps, which were recently recognized by the 2019 IES Progress Report Committee for being the first and only disinfection luminaire for food safety in manufacturing areas and cold storage.
Photo courtesy of Hubbell Lighting
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