UVC Air Disinfection vs. UVC Coil Disinfection for the Cannabis Grower

Over the past 20 years in the Germicidal UVC Air/Surface Treatment industry, the predominant and preferred method of UVC disinfection was one of HVAC evaporator coil disinfection.  In office buildings, hospitals, schools, a plethora of molds, such as Aspergillus Niger can grow inside the coil fins and create a biofilm robbing your HVAC system of peak cooling efficiency.  This is important in the day to day operating of the HVAC equipment and can help the system operate on a longer timeframe and at peak efficiency.  However, most UVC lamps sized for coil cleaning are extremely limited for any airstream disinfection regardless of the targeted contaminant.

UVC Coil Cleaning is still an important application, but for indoor Cannabis Growers, removing fungus from Powdery Mildew is given precedence over maintenance of HVAC coils.  For UVC to assist in the prevention of fungus such as Powdery Mildew and Botrytis within the Cannabis Growers facility, UVC Air Disinfection is the recommended application.  Powdery Mildew can get trapped in HVAC coils, but it needs a host to thrive and the coil is not its favorite location for thriving.   Thus, if you were to utilize UVC on HVAC evaporator coils, you would help keep the coil clean, but as for prevention of Powdery Mildew and Botrytis, your results would be minimal.  Thus, if a Cannabis Grower is suffering from Powdery Mildew and Botrytis, it’s strongly recommended to apply a UVC Air Disinfection System.

UV-C Coil Cleaning
UV-C Air Disinfection

Let me briefly go into some very low level UVC physics.  The generic formula for performance is as follows:

Intensity x Time = Kill Rate

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