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Frequently Asked Questions
Your Questions Answered
Technology
Far-UVC
What is Far-UVC?
The term “Far-UVC” describes ultraviolet rays of a certain wavelength, including the 222nm rays emitted by the Lumenizer disinfection system.
How was Far-UVC discovered?
In 2013, Professor David Brenner, director of the Radiology Research Center at the Columbia University School of Public Health, discovered that shortwave length ultraviolet C band light can potentially be used as a human safe disinfection measure, and conducted experiments to prove the efficacy and safety. In 2018, Dr. Brenner published a paper on 222nm wavelength far-UVC light in Nature’s “Scientific Reports” confirming that far ultraviolet rays do not harm the skin and eyes. In 2020, Dr. Brenner published another peer-reviewed paper in “Scientific Reports” showing that far ultraviolet rays can effectively inactivate coronaviruses and are safe for humans.
How can Far-UVC inactivate viruses while being safe for human skin and eyes?
As a matter of basic physics, 222nm far ultraviolet light is strongly absorbed by all biological material. It cannot penetrate the top dead cell layer, stratum corneum, of our skin or the tear layer of the eyes, therefore it can’t harm living cells.
How effective is Far-UVC in inactivating viruses?
A dose of 222nm far ultraviolet as low as 1.2-1.7mJ/cm2 can inactivate 99.9% of the new airborne coronavirus. At a certain distance, it can inactivate 99.9% of the virus in as little as 3 seconds.
How has the safety of 222nm far ultraviolet light been proven?
In 2020, Kobe University scientists conducted skin irradiation experiments using hairless mice. The effects of conventional 254nm ultraviolet rays – used for decades to disinfect unoccupied spaces such as hospitals and surgical theaters – were compared with 222nm far ultraviolet rays. After up to 96 hours of irradiation exposure, the skin of the mice irradiated with 222nm showed no adverse reaction, while the skin of 254nm irradiated mice suffered burns. Irradiation experiments were also conducted on the eyes of mice (their eye structure is similar to humans), to compare the results of 254nm versus 222nm exposure. After 254nm ultraviolet irradiation, mice eyes developed keratitis, while 222nm far ultraviolet irradiation had no effect. Kobe University also tested 222nm irradiation exposure on a group of human volunteers using a very safe dose on their backs without harm.
How is the effectiveness of 222nm Far-UVC proven?
In November 2020, the authoritative scientific journal “Nature” published an experimental paper that concluded: “Using far ultraviolet disinfection equipment can significantly reduce the virus concentration around the virus source, and the effect is comparable to N95 masks.” For more information, visit the Lumenlabs Resources page.
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Safety
The Lumenizer™ 300 Disinfection System
Who developed the Lumenizer™ 300 disinfection system?
Lumenizer 300 filtered far ultraviolet disinfection technology was developed by Lumenlabs, LLC. Dedicated to creating a healthier future, Lumenlabs, LLC is a global company with R&D centers in the United States and China featuring a synergistic wealth of advanced technological, manufacturing, supply chain management, and marketing expertise.
How does the Lumenizer 300 disinfection system inactivate viruses?
The Lumenizer 300 system emits far ultraviolet light through a krypton chloride excimer light source, using a patent-pending nano-level band-pass filter to emit pure 222nm far ultraviolet rays for disinfection. Lumenizer 300 filtered rays deactivate the DNA or RNA molecular structure in bacteria, sporophytes, and viruses. Disinfection is achieved as the pathogen loses activity and cannot regenerate.
What are the advantages of Lumenizer 300 technology versus traditional disinfection applications?
The Lumenizer 300 system emits pure 222nm filtered far ultraviolet disinfection that effectively inactivates harmful microorganisms in the air and on surfaces. The Lumenizer 300 can be used safely and continuously in human environments including crowded indoor spaces. Conventional ultraviolet UVC sterilization (254nm), used extensively in hospitals and surgery theatres, cannot be used in human environments because they can cause skin cancer and eye damage. Air purification disinfection equipment offers low efficiency only inactivating harmful airborne microorganisms with no effect on pathogens attached to the surface of objects and people. Chemical disinfection is labor intensive requiring continued applications, leaves chemical residues, and can be harmful to the human body.
What are the product advantages of the Lumenizer 300 disinfection system?
Harmless to humans and animals, Lumenizer systems provide continuous high efficiency disinfection. Designed for a variety of indoor environments, the Lumenizer 300 is fully automatic, easy to install, and requires no special use conditions.
Is Lumenizer 300 technology patent protected?
Lumenlabs, LLC has its own patent portfolio to protect product innovations. Currently, the Lumenizer 300 is patent-pending. These patents focus on the modular design of replaceable light sources, artificial intelligence management, far ultraviolet disinfection, light distribution, and design.
What kind of technology is used by the Lumenizer 300 disinfection system?
The Lumenizer 300 system uses a krypton chloride excimer lamp as the light source, with a patent-pending nano-level band-pass filter ensuring that the pure 222nm far ultraviolet light emitted effectively inactivates viruses while providing personal safety. A band-pass filter is critical for ensuring the safe use of Far-UVC. Without the filter, the light source will allow the emission of harmful bands – one of many Lumenizer technological advancements.
Is the Lumenizer 300 disinfection system safe?
The Lumenizer 300, and other Lumenizer filtered Far-UVC technology, uses a krypton chloride excimer lamp as the light source, and its central wavelength is 222nm far ultraviolet light. At the same time, it filters harmful wavelengths of ultraviolet light through a patent-pending nano-level band-pass filter, ensuring that only pure 222nm far ultraviolet light is emitted. The Lumenizer 300 lamp has an integrated design of the light source and filter, is permanently bound, and undergoes multi-channel automated testing before leaving the factory to ensure the use of this device is safe for humans.
Is all Far-UVC safe?
No, not all Far-UVC is safe. To be safe, Far-UVC must be FILTERED to eliminate harmful wavelengths from the light source. All Lumenlabs Lumenizer disinfection system products are FILTERED.
What is the effective coverage and disinfection rate of each Lumenizer 300 lamp?
Far UVC disinfection rate is determined by the output from the source, distance, and time. Other factors including pathogen load, airflow, and air quality can affect the disinfection rates. With average or typical indoor environments, the effective coverage area of each Lumenizer lamp is 13ft x 13ft (4m x 4m). At 1.5ft (0.5m) away from the light source, usually, the breathing layer, a 99.9% disinfection effect can be achieved in 10 seconds. At 5ft (1.5m) away from the light source, usually, the active area and the surface of many objects, 99.9% disinfection can be achieved in 1.2 minutes. At 8ft (2.5m) away from the light source, usually, on or near the ground, 99.9% disinfection can be reached in 3.4 minutes. For more information, visit the Lumenlabs Safety Page.
Can the Lumenizer 300 lamp achieve instantaneous disinfection?
The disinfection efficiency is based on the irradiation intensity and environmental conditions. A certain number of Lumenizer 300 disinfection fixtures can be deployed to achieve the effect of instant disinfection at the rate of 99.9%. Under normal circumstances, however, a Lumenizer 300 device can instantly reduce the virus concentration within the range of action, effectively reducing the infectivity of the virus. Even if there is a virus present, it is not infectious.
Does Lumenizer 300 meet certification standards?
The safety level is EXEMPT (internationally compliant), in line with the international safety level IEC 62471. When used as directed human UV exposure level comply with Total Threshold Value (TLV) set by American Conference of Governmental Industrial Hygienists (ACGIH®) Minimal and safe ozone emissions at 3% of standard, only <0.003mg/m3.
What organizations have certified the Lumenizer 300?
The Lumenizer 300 has been verified by the Guangzhou Institute of Microbiology and holds the two-in-one certification of National Laboratory Accreditation (CNAS) and Metrology Accreditation (CMA). The test report issued is accredited by the Asia-Pacific Laboratory Accreditation Cooperation (APLAC) and international laboratories. Mutual recognition within the cooperative organization (ILAC), as authoritative and fair data, has legal effect.
What are CNAS and CMA?
Only the testing organization that has obtained the CMA certificate can use the CMA mark on the inspection report. This inspection report with the CMA mark has legal effect and can be used for product quality evaluation, as well as results and judicial appraisal. CNAS is a national accreditation agency approved and authorized by the National Certification and Accreditation Administration Commission in accordance with the “Regulations on Certification and Accreditation of the People's Republic of China.” The inspection report marked by CNAS is not only accredited by China, but also with international quality management system certification and environmental management. There is mutual recognition of system certification and accreditation agencies.
Does Lumenizer exposure tan skin?
Ultraviolet rays that cause skin tanning have a wavelength of 280nm or more, which could be very harmful. It not only causes the skin to darken, but it also damages the basal cells and increases the probability of skin cancer. Lumenizer disinfection systems use a nano-level band-pass filter to block wavelengths beyond 230nm, therefore does not cause the skin to darken.
How To Install
Information To Know Before Installing The Lumenizer™ 300
How is the Lumenizer 300 disinfection system installed?
Lumenizer disinfection fixtures can be installed on the ceiling or wall by registered electrical workers. However, in order to reduce the risk of overexposure, the manufacturer or authorized dealer must go to the site to plan and formulate installation and use recommendations, including the minimum installation height of 8.2ft to 16.4ft (2.5-5m) from the ground, and strictly follow the Lumenlabs Safety Instructions.
What are the Lumenizer 300 dimensions?
The lightweight triangle-shaped device has a circumference of 11.8in (30cm), a thickness of 4.52in (11.5cm), and a weight of 4.6lb (2.1kg).
What is the power and voltage of Lumenizer 300?
Typical 60W and 100-240V
What is the Lumenizer 300 service lifecycle?
Lumenizer bulb has a service life of 3,000 hours and the Lumenizer system has a life of over 30,000 hours.
How to determine if the Lumenizer 300 bulb/lamp is damaged?
When the lamp is on it emits visible blue light. If the Lumenizer 300 fixture is on and the bulb is not emitting a blue light it is not working The Lumenizer lamp has an integrated design and uses quartz material. Unless it is subjected to a strong external force, in general, it will not be damaged. Damage will be visible to the naked eye. The patent-pending nano-level bandpass filter (the filter of the light source) will not be damaged given the integrated design of the lamp tube.
Can Lumenizer 300 fixtures be used simultaneously with other UV disinfection products?
Yes, the Lumenizer 300 can be used with other UV disinfection products. If two or more UV products are used in combination, whether they are manufactured by Lumenlabs or another manufacturer, please consult professional Lumenlabs technicians in advance to determine the total irradiance.
Once installed, how to confirm that the Lumenizer disinfection system is effective for sterilization?
A qualified professional third-party testing agency can conduct third-party acceptance. There are several ways to ensure desired efficacy: Use a qualified professional installer to survey, install and measure output. Output can be measured by certified 222nm calibrated light meters such as the ILT2400-UVC device by International Light Technologies. Light meters to have ISO17025 accreditation or equivalent accreditation. See www.intl-lighttech.com. Output can also be measured by colorimetric dosimeter products such as the Intellego Technologies products. See intellego-technologies.com.
How do you know if a Far-UVC product is safe?
For a Far-UVC product to be safe it must have a FILTER. Ensure the product manufacturer has a certified FILTERED safe output certification from a third-party lab. A 222nm calibrated light meter can only detect output but cannot verify if harmful wavelengths are being emitted. A 222nm UV spectrometer is needed to detect if both safe and/or harmful wavelengths are being emitted. UV Spectrometers such as the ILT960UV-RAA4 device by International Light Technologies. Light meters to have ISO17025 accreditation or equivalent accreditation. See www.intl-lighttech.com.
Does Far-UVC guarantee disinfection?
No. Like vaccines, masks, and air filtration, Far-UVC can significantly reduce transmission but cannot eliminate the risk completely. When properly deployed, Far-UVC is one of the most effective technologies available to reduce risk. To consult with a Lumenlabs specialist, email contact@lumenlabs.com.