Airocide doesn’t have the negative consequences of UV-C technology: Airocide uses 254 nm UV light source with no ozone production.  The lamps are seated in an enclosed reaction chamber so there is no direct UV radiation.  Due to their location in the reaction chamber the surface of the lamps cannot become dirty and their efficiency won’t decrease. The constant operation maximises the lifetime of the lamps which will drop if the unit is turned on/off regularly.