Disinfecting Light

Visa Lighting powered by Vital Vio logo

As human beings, we do two things to indoor surfaces: we clean them and we contaminate them.

Just like cleaning is a part of our regular routine, so is contamination—though we may not always acknowledge that fact.  

Most of us know the risks of bacterial infection, especially if we're the ones responsible for protecting a home, a hospital, or a classroom. We ease our minds with procedures, disinfection best practices, and the right products. Facility managers spend time and money ensuring their buildings are safe.   

But many traditional (and new tech) disinfection solutions follow the same format: pause operations, introduce a cleaning agent, and resume operations. For busy environments, this means disinfection doesn't happen until the room isn't needed.

Unfortunately, bacteria don't work that way.

Germs operate around the clock, and their main mission is to multiply and infect. Consider E. coli bacteria, which divides every 20 minutes! No matter how regularly the facility is cleaned, that rate is impossible to match.   

That's where continuous disinfection comes in. By continuously exposing surface bacteria to germicidal wavelengths, you can keep up with the population.  

But where can you get those wavelengths?   

Every facility already needs and uses artificial light for its daily operations. The illumination we use for working, playing, and learning touches the same surfaces we do—all day long. By using light fixtures that emit safe, germicidal wavelengths from true white light, you can protect and use the space at the same time.   

Disinfecting with germicidal light that is proven safe for humans and also illuminates the space is a practical, responsible solution.   

Disinfection in the Best Light™

We’ve done it: cutting-edge disinfection biotechnology channeled through high performance style.

By combining Visa Lighting’s architectural designs and Vital Vio’s patented LEDs, we’ve created luminaires with the power to continuously and safely disinfect with white light.

Why Vital Vio? 

Healthcare solutions company Vital Vio® has partnered with manufacturers like Visa Lighting to help any facility that needs protection from bacteria. 

Areas that use Vital Vio's patented technology can see up to 90% reduction in overall levels of harmful bacteria (like MRSA, E. coli and Salmonella) in as little as 14 days. 

Symmetry disinfecting a workout facility

 

Disinfecting Light Fixtures: Launching Spring 2018

Cade disinfecting recessed downlight in white light disinfection mode

CADE 

  • Recessed downlight
  • Nominal 6" width
  • Standard white option for design cohesion
  • Supplement existing lighting with disinfection
  • White Light Disinfection® mode and Eco Mode
Jasper architectural troffer in White Light Disinfection mode

JASPER 

  • Architectural troffer
  • 2x2 and 2x4 models
  • Mount to standard grid ceilings
  • Standard white and tunable source options
  • White Light Disinfection® mode and Eco Mode
Symmetry fixture in White Light Disinfection™ mode

SYMMETRY

  • 2x2 recessed round ceiling fixture fits in grid ceilings
  • Overbed, tunable, and general models
  • White Light Disinfection® mode and Eco Mode

LATITUDE

  • Linear direct/indirect surface fixture
  • 4', 6' and 8' nominal lengths 
  • 3" nominal depth
  • Batwing distribution
  • Indirect sidelight grazes surfaces
  • Gangable mid-run and end models 
  • White Light Disinfection® option
Catena linked linear pendants in white light disinfection mode

CATENA

  • Linear linkable pendants for custom installations
  • 4', 6' and 8' standalone models 
  • 2', 4', 6' and 8' mid-run and end models
  • Separately switched direct/indirect light
  • White Light Disinfection® option

 

 

Visa Lighting manufactures these disinfecting fixtures to be flexible for your space. Want to know how to integrate disinfecting lighting into your design? Curious about the science? Ready to order? Contact your Visa Lighting sales rep. 

 

Vital Vio is the leader in clinical research for visible light disinfection. Want proof? We can send you several studies examining use of Vital Vio disinfection technology in a variety of spaces, including third party research from independent parties.  

Catena linked linear pendants

 

What does "Disinfection in the Best Light™" actually mean? 

Light disinfection shouldn't detract from lighting design. These luminaires still need to provide illumination and integrate with their surrounding environments. That's why we've created fixtures to follow current lighting design trends while they kill germs. 

This technology is revolutionary in its safety, efficacy, and applicability. Our luminaires are capable of reducing bacteria over time while remaining safe for humans while emitting attractive white light. These three factors combine to create a disinfection solution that is truly practical for many applications.

Our product designers and engineers have been working with Vital Vio’s technology experts to produce disinfecting luminaires that can perform beautifully in the spaces that need them the most. We’ve prioritized the design needs and aesthetic trends that specifiers care about in order to bring you practical solutions. To us, finding “the best light” is all about listening to the market.

 

Which environments can benefit from disinfecting light? 

Any space where our skin comes in contact with surfaces carries a greater risk of bacterial infection. Disinfecting light fixtures provide the greatest benefit in busy environments where their continuous use can reduce operating costs and reduce the amount of time lost during frequent intermittent cleanings. These may include:

  • Hospitals and clinics (any area, particularly patient rooms, corridors, exam rooms, and waiting areas)
  • Athletic training facilities
  • Classrooms
  • Daycare facilities
  • Dining areas
  • Food preparation areas
  • Public restrooms
  • Hotel suites
  • College dorms

…and more!     

 

Latitude direct/indirect linear surface mounted ceiling fixtures in a bright classroom
Salmonella bacteria facts

 

What can light fixtures powered by Vital Vio kill? 

Because this process involves using particular wavelengths that cause harmful microorganisms to die, Vital Vio’s technology is effective against several dangerous bacteria. The list below showcases just the species that this technology has already been proven to kill—there are even more to be tested.

Gram positive

  • Staphylococcus aureus (incl. MRSA)
  • Clostridium perfringens
  • Clostridium difficile (commonly called C. diff, a bacterial endospore)
  • Enterococcus faecalis
  • Staphylococcus epidermidis
  • Staphyloccocus hyicus
  • Streptococcus pyogenes
  • Listeria monocytogenes
  • Bacillus cereus (a bacterial endospore)
  • Mycobacterium terrae
  • Bacillus circulans
  • Streptococcus thermophiles

Gram negative

  • Acinetobacter baumannii
  • Pseudomonas aeruginosa
  • Klebsiella pneumoniae
  • Proteus vulgaris
  • Escherichia coli
  • Salmonella enteritidis
  • Shigella sonnei
  • Serratia spp.
  • Salmonella typhimurium

Bacterial Endospores

  • Bacillus cereus
  • Clostridium difficile

Yeast and Filamentous Fungi

  • Aspergillus niger
  • Candida albicans
  • Saccharomyces cerevisiae

 

How does Vital Vio's disinfection technology work? 

Violet wavelengths in the germicidal 400-450nm range cause specific molecules found in microorganisms to have a “photoreaction” (a chemical reaction that involves or requires light), which produces a lethal ROS (reactive oxygen species) that damages the microorganisms’ cell membrane along with other targets. Ultimately, this results in bacterial cell death.

What does disinfecting light look like?

These germicidal wavelengths have been used for disinfection for years. What makes Vital Vio truly unique is their patented VioSafe™ LED technology. 

White Light Disinfection®

This mode utilizes a single-diode light source that precisely blends and balances enhanced output in the germicidal 400-450nm range with other wavelengths in the visible light spectrum. This produces pure 4000K-4100K white light, which means you get the disinfecting benefit of violet wavelengths without a color shift in the visual appearance of the luminaire or its light output.

So unlike other disinfecting luminaires on the market, this creates a truly white light.

Eco Mode 

An alternative to White Light Disinfection® mode, Eco Mode uses a broad-band source with high output in the 400-450nm range, producing a violet-colored light output that provides maximum visible-light disinfecting capability. This acts as a disinfection maintenance mode for when illumination is not needed in a room—while still remaining totally safe for humans, plants and animals.

How do we know that this technology is safe? 

Disinfecting with light is not a new practice. The more commonly recognized light disinfection method, Ultra Violet (UV), utilizes the 250 nm wavelengths to cause photodegradation of DNA, which results in cell death. Unfortunately, this type of disinfection is harmful to all DNA, including human DNA. Exposure to those wavelengths can severely damage our skin and eyes, so any UV disinfection must be done when the space is unoccupied—which reduces its usefulness in certain situations.

So how is this different from UV disinfection? 

Unlike UV light, 400-405nm wavelengths do not cause damage to multicellular organisms (that's us). Our cells don't contain the specific molecule that reacts to visible germicidal wavelengths, so we know it's safe. Vital Vio’s technology and products have been tested for continuous and unrestricted use around humans and are internationally certified by the IEC (IEC 62471).  

What about other disinfecting methods? 

Compared to intermittent cleaning methods that require everyone to leave, like hydrogen peroxide fogging or pulsed UVC, these luminaires don't interrupt the daily functions of the space.   

That’s not to say that intermittent cleaning methods are a bad idea. On the contrary, the best way to use VioSafe is in combination with traditional cleaning methods. That way, Vital Vio’s technology can protect surfaces over time while other methods can kill germs immediately following contamination events.

Jasper architectural troffer in disinfecting Eco Mode

Jasper architectural troffer in Eco Mode

 

Why do we need LED disinfecting technology?

Infection Control is an important global effort, especially in healthcare environments where patients are vulnerable and the potential for contamination is high. But infection is possible anywhere—that’s why we’ve worked so hard to develop a wide variety of fixtures that can use these LEDs.

 

In the US each year:

 

Salmonella causes 1 million illnesses, leading to 19 thousand hospitalizations.

E coli infects 73,000 people, costing us $30 million in medical expenses.

C diff causes 453,000 illnesses, 29,300 of which are fatal.

 

Infection Risk in Hospitals

 

Every year, 1.7 million infections are acquired in hospitals, places meant to heal and protect. These HAIs (hospital acquired infections) cost the US about $40 billion every year.

 

Stronger Bacteria

 

Antibiotic resistance is on the rise. When a bacteria population is exposed to antibiotics, some microorganisms survive. The survivors reproduce, creating generations of bacteria that become more and more resistant to antibiotics with every iteration. As antibiotic methods get stronger, so do the bugs.

The CDC estimates that 2 million people are infected with antibiotic resistant bacteria, resulting in 23,000 deaths in the US each year. New processes are currently undergoing studies to help us understand and contain this threat, and Vital Vio is an important part of that.