The air compressor has an air intake, a tank, means for pressurizing the air in the tank and an air outlet connected to the tank. High power UV LED light sources are mounted within the tank to disinfect the interior tank surface. The UV LED light sources preferably have an output wavelength within the range of 250 nm to 365 nm, most preferably within the range of 260 nm to 270 nm. Preferably, the light output of the light sources is pulsed. The light source has a cover for protecting the light source which may take the form of a quartz diverging lens. Air flow is directed through the area proximate the light source to remove particles from the light source cover. The effect of this air flow can be amplified by creating turbulence proximate the light sources utilizing a member with an arcuate profile.
