UVGI Solution for Healthcare & Medical HVAC units

Inactivate airborne pathogens & slow disease spread

Germicidal UVC is a clinically validated technology proven to inactivate infection-causing microorganisms on HVAC surfaces and airstreams.(1,2,3)

 

Facility managers use UVC as an engineering control to interrupt the transmission of pathogenic organisms, such as Mycobacterium tuberculosis (TB) and the H1N1 influenza virus. (5)

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Further, employing a layered approach to reducing infectious particles in facilities is recommended by ASHRAE and the Centers for Disease Control and Prevention. According to the CDC, “UVGI can be effective…as an additional layer of protection to reduce infectious particles in indoor spaces that host large gatherings or where the risk of disease transmission is high.” (6)

You can find UV light disinfection systems in airports, schools and offices, and it continues to play an integral role as an engineering control in healthcare facilities.
Dangerous pathogens like bacteria, viruses, and mold can spread through airstreams and HVAC systems. ASHRAE states that the UV-C wavelength can kill 90% or more of all microorganisms living on HVAC air ducts and evaporator coils, depending on UV-C intensity, length of exposure (aka residence time), UV lamp placement and lamp life cycle. (7)

The best long-term solution to keep HVAC systems free from biological growth, with quantifiable and predictable outcomes, is the application of ultraviolet germicidal irradiation (UVGI).

Using UV-C, as recommended by ASHRAE, the CDC and others, Steril-Aire UVGI solutions give healthcare facilities three sustainable advantages:

  1. Better Air Quality: In HVAC systems, mold and some bacteria can grow in damp areas around cooling coils, drain pans, plenum walls, and filters. UV-C lamps can help prevent the proliferation of microbial growth, thereby preventing these microorganisms from being recirculated and mitigating disease transmission or cross-contamination.  UVC upper-air/room systems installed in communal spaces, such as patient and waiting rooms, corridors, and break areas, have been shown to assist in interrupting the transmission of airborne infectious agents. can interrupt the transmission of airborne infectious agents. Steril-Aire UVC technology is a far more energy-efficient and environmentally sustainable engineering control than increasing mechanical ventilation.
  2. Energy Savings, Increased HVAC Capacity: UVC improves coil-heat transfer efficiency (i.e., heat transfer) by degrading organic materials on HVAC coil fin and tube surfaces. Applying UV-C eliminates coil fouling and the energy-intense adjustments typically used to compensate, such as speeding up fans, pumping more chilled water, or lowering system water temps. One healthcare facility saved $500,000 in annual energy costs by retrofitting 41 AHUs with Steril-Aire high-output UVC fixtures, generating a ten-month ROI.
  3. Reduced Maintenance Cost: Operating 24/7, UV-C energy penetrates deep into cooling coils to continuously reduce microbial build-up, which cannot be achieved by either mechanical (pressure washing) or chemical treatment. Manual cleaning of air conditioning coils and components is labor-intensive and temporary, as biofilm begins forming immediately after treatment.
power supply cabinet for UVC for HVAC page

Steril-Aire UVC for HVAC Products

How Steril-Aire has helped

Steril-Aire reduces the spread of infection at Vermont HospitalDownload
Steril-Aire reduces the spread of infection at Vermont Hospital pdf sheet thumbnail
 
UVGI decreased HVAC microbial colonization and was associated with reduced NICU environment and tracheal microbial colonization-Buffalo, NYDownload
UVGI decreased HVAC microbial colonization and was associated with reduced NICU environment and tracheal microbial colonization-Buffalo, NY pdf sheet thumbnail
 
Florida Hospital, Orlando, FLDownload
Florida Hospital, Orlando, FL pdf sheet thumbnail
 
Rio Grande Regional Hospital Projects Annual Energy Savings of $500,000Download
Rio Grande Regional Hospital Projects Annual Energy Savings of $500,000 pdf sheet thumbnail
 
Clinical Quality & Infection ControlDownload
Clinical Quality & Infection Control pdf sheet thumbnail
 
Lehigh Valley Hospital and Health Network, Bethlehem, PADownload
Lehigh Valley Hospital and Health Network, Bethlehem, PA pdf sheet thumbnail
 

[1] Downes, A., Blunt, TP. The Influence of Light upon the Development of Bacteria. Nature 16, 218 (1877). Retrieved from https://doi.org/10.1038/016218a0
[2] Downes, A., Blunt, TP. 1878III. Research on the effect of light upon bacteria and other organisms Proc. R. Soc. Lond.26488500. Retrieved from http://doi.org/10.1098/rspl.1877.0068
[3] Wells WF, MW Wells, TS Wilder. Viability of B. coli exposed to ultra-violet radiation in air, Science 1935. 82:280-281. Retrieved from https://doi.org/10.1126/science.82.2125.280-a
[4] World Health Organization. WHO Guidelines on Tuberculosis Infection Prevention and Control: 2019 Update. Geneva: World Health Organization; 2019. Retrieved from https://www.who.int/publications/i/item/9789241550512
[5]. McDevitt JJ, Rudnick SN, Radonovich LJ. Aerosol susceptibility of influenza virus to UV-C light. Appl Environ Microbiol. 2012. Retrieved from https://pubmed.ncbi.nlm.nih.gov/22226954/
[6] CDC. Facility Cleaning & Ventilation, Ventilation in Buildings. Jun. 2, 2021. Retrieved from https://www.cdc.gov/coronavirus/2019-ncov/community/ventilation.html
[7] ASHRAE (2015) ASHRAE Position Document on Filtration and Air Cleaning. Retrieved from https://www.ashrae.org/file%20library/about/position%20documents/filtration-and-air-cleaning-pd-feb.2.2021.pdf