Determine the required UV dose level
UV dose is the amount of UV-light energy that a microorganism is exposed to while corssing the disinfetion chamber of the UV systesm. UV dose is normally designated by the folliowing units:
mJ/cm2 [e.g. 40mJ/cm2]
J/m2 [e.g. 400J/m2]
uWs/cm2 [e.g. 40,000uWs/cm2]
The UV dose level should be determined according to the purpose of the UV system. For example:
- Do you need a UV system to protect your facility from specific pathogen/s? if so, consult your UV provider or available literature about the required UV dose level for inactivation of the target pathogen.
- Do you need a UV system for complying with regulations? consult the regulation guidelines for the required UV dose level.
- Is it for the inlet, outlet or re-circulation of the facility? the application (or location) of the UV system might also influence on the UV dose level.