Iwata Compressors are grouped into three different levels of pressure output:

Low Pressure Output - with working pressures of 1-20 psi, these light-duty airbrush compressors are great for small projects that require low pressure spraying

Low - Medium Pressure Output - at working pressures of 1-40 psi, these airbrush compressors are built for occasional use with general purpose spraying.

Low - High Pressure Output - with working pressures of 1-60 psi, these powerful airbrush compressors are versatile, hard working and can be used daily