The nozzle of my air compressor would work against the vent just fine. My compressor barely makes 85psi, though.
The other compressor for filling carbon-fiber air tanks, runs to 4,500psi, but no volume to speak of straight from the
compressor, however if a hose could be run from a scuba tank to the barrel, it would certainly blow out whatever was
in there.
Aluminum scuba tanks run to 3,000psi, steel ones to 3,3??psi and the carbon fiber tanks, mostly to 4,500spi.