Coronavirus: Fresh-Aire UV efficiency against viruses, bacteria & mold

At The Congressional Group, LLC, we are grateful to have sister company Congressional Heating and Air Conditioning by our side during our most challenging period to date. With a focus on bringing the most current technology into your home, Congressional HVAC has partnered with Fresh Aire UV to provide and install whole house air purifiers in Montgomery County and the surrounding areas. The following article has been reprinted from the recent Fresh-Aire UV Covid-19 update.

Fresh-Aire UV has been receiving inquiries regarding the effectiveness of UV disinfection systems against COVID-19 (coronavirus). We believe the best approach is to be as transparent as possible and to explain the fundamentals and variables that play a factor in inactivating coronavirus and other pathogens with UVC germicidal technologies. 

Fresh-Aire UV systems are tested and validated against bacteria, viruses, mold & fungus. Fresh-Aire UV systems have been tested and achieve up to a *99.999% reduction on microorganisms. There are a number of factors that need to be addressed in order to determine efficiency, these include but not limited to, the application, such as surface or air disinfection, air velocity and temperature, recirculation rates, and dwell time, as well as the specific biological target. Fresh-Aire UV systems are installed in the HVAC unit and/or ductwork and are designed to disinfect surfaces and the air as it circulates through the ventilation system. UV dosage can be measured in several ways including microwatts per second/centimetres2 (μWs/cm2). 

Every microorganism requires a specific UVC dosage for inactivation including coronavirus. UV disinfection has been employed for decades in water treatment; these microwatt values have been used for reference to gauge UVC efficiency against a large cross-section of microorganisms. While Fresh-Aire UV systems have not been specifically tested against coronavirus, they have been tested and proven effective against similar pathogens, some that require an even greater dosage for inactivation than coronavirus. 

UV disinfection systems for room, surface & HVAC are an ideal proactive measure to complement filtration. Microorganisms, particularly viruses, are so small that filters are mostly ineffective. The UV systems have also been shown to reduce problematic molds and pathogens that are found within the HVAC system and drain pan that would otherwise be introduced and distributed throughout the envelope of the building. 

For more information or to schedule an estimate, please call Kevin at Congressional HVAC.

Kevin Biss
Phone: (301) 330-0035
Email: kevin@congressionalhvac.com

Reprinted from Fresh Aire UV