To explain the observed phenomenon that most SARS‐CoV‐2 transmission occurs indoors whereas its outdoor transmission is rare, a simple macroscopic aerosol balance model is developed to link short‐ and long‐range airborne transmission. The model considers the involvement of exhaled droplets with initial diameter ≤50 µm in the short‐range airborne route, whereas only a fraction of these droplets with an initial diameter within 15 µm or equivalently a final diameter within 5 µm considered in the long‐range airborne route. One surprising finding is that the room ventilation rate significantly affects the short‐range airborne route, in contrast to traditional belief. When the ventilation rate in a room is insufficient, the airborne infection risks due to both short‐ and long‐range transmission are high. A ventilation rate of 10 L/s per person provides a similar concentration vs distance decay profile to that in outdoor settings, which provides additional justification for the widely adopted ventilation standard of 10 L/s per person. The newly obtained data do not support the basic assumption in the existing ventilation standard ASHRAE 62.1 (2019) that the required people outdoor air rate is constant if the standard is used directly for respiratory infection control. Instead, it is necessary to increase the ventilation rate when the physical distance between people is less than approximately 2 m.
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A private school in Summerland now boasts cutting-edge technology that eradicates nearly all indoor airborne pathogens, including the virus that causes COVID-19.
These wondrous lights not only zap COVID, but also kill an array of other viruses, bacteria, fungi and mold.
The first Canadian installation of a new virus-destroying LED light has been tested and found to be highly effective in cleaning the air at a private school in the Okanagan, paving the way for installations in other public and private facilities such as hospitals, restaurants, and businesses.
The Titan UVC LED units were easily installed inside UNISUS School’s air ducts, providing a safe indoor environment for their students, teachers, and staff. The Titan UVC LED lights have been proven to be highly effective in eradicating all indoor airborne pathogens including the COVID-19 virus. Airborne pathogens are a challenge for schools even without COVID.
A local Okanagan lighting company, CNJ Lighting Solutions partnered with a Canadian manufacturer NEXNORD Inc. of Brantford Ontario, to install these Titan UVC LED air duct lights, the only UVC LED product on the market that is powerful and robust enough to eradicate all indoor airborne pathogens no matter the size of the building when installed inside the building’s air ducts.
CNJ’s Director of Operations Nancy Wilson says, “The purpose of the UNISUS School pilot project was to test the effectiveness of the Titan UVC air duct devices in cleaning the indoor air of fungal spores. Final air testing showed an overall reduction of 89.2%. Fungi are the largest and most difficult pathogens to eradicate. Viruses, such as COVID-19, are the smallest and most fragile. Therefore, we know that if the Titan UVC LED air duct device is eliminating the indoor airborne fungi, it is also disinfecting the indoor air of all bacteria and viruses.
The TITAN LED UVC lights are installed inside a building’s cold air return ducts, and as the airflow approaches the Titan lights, this powerful 70W UVC light, performing at 280 nanometers, deactivates the RNA and DNA of the organism rendering it harmless. It also prevents the biofilm buildup on HVAC coils.
In comparison to the Titan UVC LED lights, the old UVC lamp technology will require annual lamp replacements that become very costly. However, once installed, the Titan UVC LED light will require no maintenance for up to 10 years.
Shan Jamal, CEO NEXNORD Inc. says “In March 2020, when we realized that COVID-19 was a deadly airborne disease that was present inside a building’s air ventilation system, we pivoted from manufacturing industrial and commercial LED lighting to focus on creating UVC LED air duct lights to eradicate the virus indoors. We made it our goal to play a part in helping create a safe indoor environment for businesses and residences. We succeeded in doing so, by creating an extremely powerful device that will eradicate all indoor airborne pathogens such as the coronavirus, cold and flu viruses, bacteria, and mold. Our fixtures provide clean and disinfected indoor air.”
CNJ Lighting Solutions has been providing lighting products and services to a wide range of clients since 2007. Headquartered in the Okanagan Valley of British Columbia, CNJ’s many projects include Vancouver’s Rogers Arena, UBC’s Thunderbird Arena, Royal Lepage Arena, KF Aerospace, University of Toronto, and the West Vancouver Secondary School. Today, CNJ is committed to partnering with companies and technologies that help create indoor environments that are safe for everyone.
UNISUS International School is an International Baccalaureate World School that offers innovative early childhood education to grade 12 for both daytime and boarding students.
“As an International Baccalaureate School, we value our ability to live in a diverse environment that encourages students from all over the world to come together to learn. Canada is already one of the safest places for international students to study and we are incredibly grateful to have the opportunity to leverage this technology and system to keep our students even safer than before. We are proud to be the first school in Canada to implement this leading edge technology allowing us to provide one of the safest learning environments in the country.” Cindy Leung – UNISUS Board of Directors
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Summerland-based lighting company to install technology at private school
A local Okanagan lighting company is poised to install the first to market virus-busting light system, in UNISUS School. Summerland-based CNJ Lighting Solutions is partnering with Canadian manufacturer NEXNORD Inc. of Brantford Ontario, to install the Titan, the only UVC LED product on the market that is powerful and robust enough to clean 2000 cfm of air when installed into an HVAC system. Air pathogens are challenges for schools even without Covid. The installation will fill a critical link in terms of providing a clean and safe learning environment.
CNJ’s Director of Operations Nancy Wilson says, “UNISUS School will be a showcase for the air cleaning power of the Titan, ensuring harmful pathogens such as COVID-19, are captured from the room and inactivated prior to spreading through a building, protecting the health of students and staff. Ultimately CNJ Lighting plans to install this system in hospitals, nursing homes, sports arenas, retail environments, and residential settings. The Titan efficiently and effectively cleans the air in all buildings using a forced air handling system”.
Dave Bowen Director of Sales, NexNord Inc. says, “NexNord is proud to partner with CNJ Lighting Solutions and UNISUS School in showcasing the Titan product. We believe the Titan will give all of us the confidence to once again enter our schools, businesses, arenas and homes, that are free of harmful pathogens”.
The TITAN LED UVC lights are easily installed into a building’s air ducts and, as the air flows past the lights, this powerful 70W UVC lamp, performing at 280 nanometers, deactivates the DNA of the organism rendering it harmless. It also prevents the biofilm buildup on HVAC coils. CNJ Lighting Solutions has been providing lighting products and services to a wide range of clients since 2007. Headquartered in the Okanagan Valley of British Columbia, CNJ has a dedicated team of lighting specialists, engineers, and industry experts providing customer service, lighting layouts, and photometric measurements to support our clients throughout the planning process. Their many projects include Vancouver’s Rogers Arena, UBC’s Thunderbird Arena, Royal Lepage Arena, KF Aerospace, University of Toronto, and the West Vancouver Secondary School, to name just a few. Today, CNJ is committed to partnering with companies and technologies that help create environments that are safe for everyone.
UNISUS School is an IB World School that offers innovative early childhood to grade 12 education for both daytime and boarding students.
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Stop cleaning and start ventilating — that’s the message from Michael Brauer, a professor in the School of Population and Public Health at UBC.
UV Angel’s air and surface technology helps create safer and cleaner in-restaurant experiences for McDonald’s guests and employees through room-level source control
Good building ventilation is the key to reducing indoor transmission, bioaerosols researcher says
Public Health Agency of Canada previously made no mention of aerosol transmission in federal recommendations
Public Health Agency of Canada says aerosol transmission ‘has occurred’ but won’t update public guidelines.
The Centers for Disease Control and Prevention (CDC) said Monday that coronavirus can spread through “airborne transmission” to people who are more than 6 feet away under certain conditions.
The old “Buyer Beware” approach is more important today than ever before… especially when choosing lighting solutions for a major project. The impact of Covid-19 is being felt by many businesses, small and large, resulting with many being forced to close their doors. We are also seeing new companies flooding the market trying to fill the gap with untried lighting solutions.
CNJ Lighting Solutions continues to work with strong and reliable lighting partners who have been in business for many years and are able to weather the uncertain times in which we find ourselves. Manufactures such as PL Light, a family owned business, has been serving the North American Horticultural Industry for 40 years. Located in Canada, they are an established industry leader. Horticultural lighting is all they do and and they’ve weathered 40 yrs of world economic changes.
Buying lighting is a huge long-term investment for any business. Give us a call at CNJ Lighting to help you find a solution for your next Lighting Project.
Manage Risky Dental Aerosols with UV-C
Learn the benefits of employing air purification in your clinic. Utilize the same system recommended by one of Canada’s leading Infectious Disease doctors to mitigate the risk of AGMP’s and protect front line workers from COVID 19. UV Angel Air is shielded UV-C, continuously providing proven UV-C technology in occupied spaces, effectively neutralizing pathogens on every pass-through.
Continuing Education Credit Certification available upon request!*.
Sundial Growers have recently opened their doors to their 500,000 Sq Ft Marijuana Grow facility in Olds Alberta and CNJ Lighting Solutions is proud to have been part of their “grow light” solution. CNJ Lighting partnered with Canadian Manufacturer P.L. Light Systems who is a leading manufacturer of horticultural lighting systems around the World.