Sullair 185DPQ is a portable air compressor used in construction, utility, and industrial applications. It is part of Sullair's 185 cfm class and is commonly configured as a diesel-powered towable unit for jobsite air supply. The 185DPQ designation is associated with a compact, trailer-mounted compressor package designed to support pneumatic tools, sandblasting, and general compressed air needs. Typical features include a rugged enclosure, service access panels, and a skid or trailer frame for transport. Exact specifications can vary by year and configuration, including engine type, pressure rating, and air delivery.