ROLAIR JC30WH | Air Filter Modification for Quieter Operation 

Comparison to a cheap compressor - • ROLAIR JC30WH vs MECHP...
The fill time with and without the straws is identical, so the reduction in diameter of the intake does not seem to have restricted the air-flow. When the straws are inserted the motor load also does not seem to change. Of course the larger ID on the straws you can find the better.