Hello from Autumn Air Heating & Cooling LLC.
We wanted to take a moment and discuss our Fresh-Aire UV Systems. We’ve had inquiries on our system on how effective UV disinfection systems are against Coronavirus. We believe the best approach is to be as transparent as possible and explain the fundamentals and variables that play a factor in inactivating Coronavirus or any other pathogen with UVC germicidal technologies.
Fresh-Aire UV systems are tested and validated against bacteria, viruses, mold & fungus. Fresh-Aire UV systems have been tested to achieve up to a 993999996% 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 & 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 the air it circulates through the ventilation system. UV dosage for log reduction is measured in several ways including microwatts per second/centimeters2 (μWs/cm2).
A very large percentage of microorganisms have an already defined microwatt dose for UVC 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. It is impossible for any manufacturer to test systems against every biological target. Fresh-Aire UV systems have not been tested against Coronavirus. Fresh-Aire UV systems have not been tested against Coronavirus. Fresh-Aire UV systems have been tested against biological targets that require greater dosage for inactivation.
UV disinfection systems for HVAC are the ideal proactive measure to complement filtration, addressing microorganisms that are so small, that filter 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 any other questions regarding Fresh-Aire UV systems, please do not hesitate to call our office.
We at Autumn Air Heating & Cooling LLC strive to be here and available as long as mandates allow helping service you’re A/C unit(s), and help keep your family as comfortable as possible during these difficult times.