The path to managing COVID just got a whole lot brighter

What if the lighting used throughout your facility came with the added benefit of fighting viruses and bacteria? Now it can, with Indigo-Clean technology. Indigo-Clean is safe, continuous, and effective at killing SARS-CoV-2 (the virus that causes COVID-19), Influenza-A, Staph Aureus and a list of pathogens that negatively impact health and wellness.

Want to learn more or discuss a project using Focal Point luminaires with Indigo-Clean technology? Contact us.

A word on safety

Unlike other lighting disinfection technologies, Indigo-Clean uses the visible light spectrum, it is always safe for room occupants–even when performing at the highest level of disinfection. This means rooms can remain occupied with no worries about safety.

IC Light Spectrum

Destroy 94% of SARS-CoV-2. Protect 100% of what matters most.

Sons and daughters, mothers and fathers, sisters and brothers, patients, students, employees, colleagues, guests, and staff are all safe on our watch. Indigo-Clean technology functions effectively even while people are present, providing safe, continuous germ-fighting performance via your overhead lighting.

Indigo-Clean application types: classroom
Indigo-Clean application types chart

Proven to kill pathogens, cut costs, and add value.

For more than 7 years, this patented lighting technology has been effectively used by hundreds of hospitals and healthcare systems to reduce harmful bacteria, such as Staph, including MRSA, in ORs and patient spaces. Indigo-Clean has also demonstrated a reduction in intraoperative transmission and surgical site infections in studies at Maury Regional Medical Center and the University of Iowa. Most recently, it has been proven highly effective in killing viruses; expanding its use far beyond healthcare settings to include offices, schools, hospitality, retail, and other congregate settings.

Indigo-Clean technology can help reduce the costs associated with C. diff and MRSA, as well as SARS-CoV-2 and Influenza-A transmission. Considering the benefit of safely opening classrooms, stores, offices, and other group settings during the pandemic, the value is priceless.

Indigo-Clean chart

Killing pathogens in the air, and on surfaces.

Using a patented blend of 405 nanometer indigo and white LED light, Indigo-Clean technology bathes spaces in germ-fighting protection. Due to the reflective nature of light, Indigo-Clean reflects off walls and other surfaces to reach the many shadowed areas other disinfection technologies often miss. Once exposed, pathogens are oxidized from within, no matter where they exist: in the air and on surfaces.

Impact on Virus

Around-the-clock environmental disinfection.

Rather than relying solely on staff to clean surfaces, or HVAC systems to purify the air, Indigo-Clean combines the benefits of both. Although unnoticeable, our technology is always working to reduce harmful viruses and bacteria; maintaining disinfection between routine cleanings and filling the gap left by episodic (or non-continuous) disinfection methods.

Designed to address entire facilities, from healthcare areas where the risk of infection is highest, to classrooms, conference rooms, waiting rooms, and other high-traffic spaces, Indigo-Clean technology is a safe and fundamental part of any disinfection strategy.

Disinfection Modes

Want to learn more or discuss a project using Focal Point luminaires with Indigo-Clean technology? Contact us.


Indigo-Clean, a continuous environmental disinfection technology, uses visible light to safely and continuously kill harmful viruses and bacteria within the environment, while also providing ambient illumination within the space. Indigo-Clean is a technology integrated into light fixtures, which install easily into the ceiling of any hospital room, classroom or office space to bolster your current cleaning protocols.

Most recently, Indigo-Clean technology has been proven to kill 94% of SARS-CoV-2 and Influenza-A*. It is also clinically proven to kill bacteria, including MRSA** and C. diff***, as well as other ESKAPE pathogens: Enterococcus Faecalis, Klebsiella Pneumonae, Acinetobacter Baumannii, Pseudomonas Aeruginosa, Enterobacter Species. It also kills Aspergillus Niger, E.Coli, and Salmonella Enteritidis. It is least effective against non-enveloped viruses, such as Norovirus.

* **Rutala W., Kanamori H., Gergen M., Sickbert-Bennett E., Sexton D., Anderson D., Weber D.J., Antimicrobial Activity of a Continuous Visible Light Disinfection System, ID Week 2016 *** SGS Lab Report# - 09S17053798

Yes, however, the level increases over time as the dose builds up within the organism. In a laboratory setting, 99% disinfection can be achieved in as little as 2 hours. In clinical settings, where pathogens are being reintroduced into the room while Indigo-Clean technology is in operation, a continuous reduction of 70% is realized after the first 24 hours of operation.

No. Indigo-Clean technology is designed to reduce harmful pathogens in the environment by supplementing your current disinfection efforts.

Current environmental disinfection methods are applied at discrete moments in time, classifying them as “episodic.” Although these methods are effective, the results from episodic cleaning are short-lived because germs immediately begin to re-populate the space once the cleaning episode has concluded. We are the only manufacturer that understands how to apply proper dosing to ensure Indigo-Clean kills harmful bacteria and viruses in the air and on surfaces. Most current cleaning solutions miss the places these pathogens are often found, including the many shadowed areas within a space. To date, Indigo-Clean is the only visible light disinfection technology clinically proven effective through both laboratory testing and published, peer reviewed studies.

Environmental disinfection is the destruction of microorganisms in the air and on surfaces. Its ultimate purpose is to improve the health and safety of room occupants by reducing reservoirs where pathogens often reside and re-populate.

The dose index factor scientifically determines the necessary light coverage for the space based on the specific product type being installed.

Depending on the product, the color of an Indigo-Clean fixture may appear slightly different than a normal light fixture due to the addition of 405nm light.

Indigo-Clean technology provides continuous environmental disinfection suited for a broad range of clinical applications and congregate settings. The technology works best where there is a concentration of patients, caregivers, students, staff or patrons who contribute to the migration of pathogens throughout the space. It is especially suited for entryways, waiting rooms, restrooms or places that are difficult to clean continuously, and/or where pathogens are known to enter the facility. Within the healthcare setting, it is also ideal for areas occupied by patients whose compromised immune systems make them more susceptible to acquiring an infection.

Indigo-Clean technology is intended for facilities, environmental services, and infection prevention professionals responsible for maintaining cleanliness and preventing the spread of pathogens throughout a variety of spaces. It is designed to reduce the spread of bacteria and viruses that cause Healthcare Associated Infections (HAIs), COVID-19 and the common flu by bolstering existing infection prevention protocols.

Indigo-Clean technology uses a visible wavelength of light—405nm—generated from state-of-the-art advances in LED technology, to kill harmful viruses and bacteria: oxidizing them from within. This visible wavelength of light reflects off walls and surfaces, providing disinfection even in shadowed areas. Indigo-Clean technology breaks the chain of infection between organism and host, which ultimately reduces the infectivity of bacteria and viruses, including those that cause Healthcare Associated Infections (HAIs), COVID-19 and the common flu.

Indigo-Clean technology is ideal for operating rooms due to the cost and consequence of surgical site infections (SSIs). However, Indigo-Clean technology’s enhanced product portfolio allows for expansion into other healthcare applications, including patient rooms, restrooms, waiting rooms, nurses’ stations, procedure and exam rooms, and emergency departments. With the need for safe, continuous disinfection punctuated by the pandemic, it is also ideal for use in education, office, hospitality and other public settings where people congregate.

Indigo-Clean was launched in 2015 with a focus on acute healthcare—the area most likely to benefit from this technology. The pandemic has highlighted the importance of environmental disinfection in a wider range of applications, such as schools, offices, and other public spaces.

Indigo-Clean uses visible light, not UV, so it is safe for people and materials. Additionally, Indigo-Clean is certified ‘Exempt’ under the internationally recognized standard for safety: IEC 62471. This means that people can be in the space without exposure limits for any period of time.

Indigo-Clean technology was invented by the University of Strathclyde, Scotland in 2005. After initial laboratory testing, it was tested in occupied patient rooms at the Glasgow Royal Infirmary from 2008-2011. Since that time, the University has continued to invest in additional laboratory and occupied room studies. Commercialization efforts have also included a range of laboratory tests, primarily focused on the application science, and demonstrating the performance of the technology in occupied patient rooms, operating rooms, and emergency departments. Most notably, Indigo-Clean has been shown to improve outcomes by reducing Surgical Site Infections (SSI’s).

Further studies are needed to confirm its effectiveness against variants of SARS-CoV-2.

Yes, even with vaccines, COVID-19 is expected to be endemic, and whole-room disinfection systems play an important role in any SARS-CoV-2 mitigation strategy.

Indigo-Clean technology products comply with the Buy American Act and are manufactured in the United States with more than 50% of the component cost of U.S. origin.

Indigo-Clean is a registered trademark of Kenall Manufacturing Co., a Legrand company