Platinum Series P185 portable air compressor is Tier 4 Interim compliant with a John Deere or Yanmar 48-horsepower engine. Providing 185 cfm at 100 to 125 psi, compressor’s noise level has been reduced by 50 percent. Doosan Infracore says fuel efficiency has been increased by 21 percent, allowing the unit to run for 10 hours on a tank. Tool box space is increased by 33 percent over the previous model. A spin-on separator element eliminates the need to enter the separator tank and prevents spillage during oil changes.