In still another form, the present teachings provide an mini air compressorwith a compressor, an air tank having a tank wall that defines a tank cavity, a regulator valve and a manifold. The manifold has a manifold body that includes an inlet port and an outlet port. The manifold body is threadably coupled to the air tank. The inlet port is coupled in fluid connection to tank cavity and the compressor, while the outlet port is separate from the inlet port and in fluid connection with the tank cavity and the pressure regulator.medical application air compressor