News: LEDs
18 February 2021
Seoul Viosys and SETi’s Violeds used by Illumipure in enclosed air disinfection chamber
Using the Violeds ultraviolet light-emitting diode (UV LED) technology of Seoul Semiconductor subsidiaries Seoul Viosys Co Ltd and Sensor Electronics Technology Inc (SETi), Illumipure Corp of Houston, TX, USA (a manufacturer of LED lighting and disinfection systems for commercial and institutional applications) has developed the Air Guardian enclosed air disinfection chamber that eliminates >99% of airborne pathogens, including viruses, mold and bacteria.
Designed to be placed inside a return duct, plenum or mounted in a ceiling, the Air Guardian system features Illumipure’s patented Immaculight four-stage protection process:
- surface-mounted fans draw indoor air through the titanium oxide (TiO2) ceramic filter inlet;
- air travels through a chamber coated with proprietary material excited with UV-A LED light;
- air travels through a chamber >18 linear feet / >19 square feet surface area irradiated with UV-C LED light;
- exhaust air travels through a carbon filter to eliminate fine particulates.
“The Air Guardian disinfection system represents a breakthrough for combatting airborne pathogens in a safe and effective manner,” claims Illumipure’s president & CEO John Higgins. “Using proven technologies that combine UV-A and UV-C light sources with advanced multi-layer heterogeneous filtration, our system is demonstrated to sterilize more than 99% of airborne pathogens on a continuous basis,” he adds.
“When we were developing the Air Guardian system, our research led us to the Seoul Viosys/SETi Violeds UV LED technology, which was demonstrated to sterilize 99.9% of the coronavirus in just 30 seconds,” says Higgins. “The Violeds modules deliver the superior performance, uncompromising quality and unparalleled reliability that we required,” he adds.
“As global demand for UV-C technology increases and overall electronic component lead-times stretch, Future Electronics, a valuable partner of SETi, profiles critical components in advance of demand,” says Salvatore Pepe, corporate VP of distributor Future Electronics. “This essential supply chain support enables faster delivery to our customers in all market conditions.”
Violeds is a UV LED technology jointly developed by SETi and Seoul Viosys through more than 20 years of R&D, and is now recognized as an advanced optical technology for the biomedical industry, say the firms. Using only UV light with wavelengths of 200-400nm to sterilize, it can be optimally designed for each application for disinfecting airborne particles, surfaces and water. Two recent studies by Korea Testing Laboratory and biotechnology research firm KR Biotech have demonstrated that the Violeds UV-C LED modules sterilize more than 99% coronavirus in seconds.
The new Air Guardian disinfection system is designed to protect human health without emitting ozone, using harmful chemicals, or releasing toxic materials, and employs both UV-A and UV-C light sources, as well as a multi-layer filtration system to disinfect and remove particulates, pathogens and pollutants. The system’s fan and disinfection chamber can sterilize airborne pathogens, including SARS-CoV-2 (COVID-19), MRSA, salmonella, E. Coli, mold, spores and bacteria with an effective sterilization rate of >99%.
Available in either 2’x2’ or 2’x4’ aluminium enclosures designed for ceiling or duct mounting, the patent-pending Air Guardian system is suitable for use in offices, retail establishments, food service and restaurants, government and community locations, classrooms, health facilities, labs and clinics. The system is FDA-certified under Medical Device Classification Class 1, Listing #D420497, EPA Establishment #98105-TX-1, and FDA Facility #10077990. It also carries certification by CE, ETL, and RoHS.
SETi and Seoul Viosys develop portable surface disinfection unit
SETi and Seoul Viosys’ Violeds technology kills 99% of coronavirus within a second
