The Ingersoll Rand P185 is a portable air compressor used in construction, utility, and industrial applications. It is commonly configured as a towable diesel-powered unit designed to supply compressed air for pneumatic tools, sandblasting, drilling, and general site support. The P185 is known for its compact footprint, durable enclosure, and service-friendly design. Typical specifications include a free air delivery rating around 185 cfm, with operating pressure options commonly around 100 to 150 psi depending on configuration. The model is part of Ingersoll Rand's portable compressor line and is widely used for mobile compressed air needs.