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Oil Free/Oil Less Air Compressor

PureAir Single or two stage reciprocating technology 3.7-11.2 kw (5-15hp)

The unique design of the PureAir Series assures the long life and productivity. Our continuing program of product research and development assures that each Gardner Denver compressor includes the latest advancements in oil-less compressor technology. Internal moving parts in the PureAir Oil-Less design are protected from wear without conventional lubrication. Crankshaft and rod bearings are lubricated by exclusive sealed, solid synthetic lubricants. Pistons move on alloyed heat-resistant filled Teflon guide and compression rings. The result is low maintenance, high durability and pure, oil-less air!


  • 5 - 15 hp 
  • 15.8 - 138 acfm 
  • Up to 175 psig
  • Single & Two Stage , Air or Water Cooled
  • Duplex, Triplex and Quad packages available 
  • Tank or Base Mounted, Belt Driven 


  • Totally Dry Crankcase. Designed to maintain continuous operation. Finned to maximize efficient heat transfer. Large cover provides easy access to internal parts for service. 
  • Pistons. Patented design with "Iso-Temp" coating on top to isolate piston, rings, and connecting rod bearings from the full heat of compression provides exceptional thermal heat barrier for extended ring life - 10,000 hours or more! 
  • Valves. Plated valve plates and reeds of highest grade Swedish steel extend operating life and durability.
  • Piston Rings. Designed for oil-less compressor service with three compression rings and two guide rings. Exclusive "O" ring pumper prevents axial movement of the guide rings and eliminates end wear. Formulated of filled PTFE material for long life and compatibility with the hardened nickel-plated, polished surface of the cylinder bore. 
  • Crankshaft. Cantilevered crankshaft design provides superior balance and long life. 
  • Air-cooled Aftercooler (Optional). Oversized, with ample reserve for cooling discharged air to within 5 - 10 degrees of ambient temperature. Enables air dryer to work at its highest efficiency. 
  • Cast-Iron Cylinders. Permanently nickel-plated and hardened to resist wear and corrosion, even under extreme operating conditions. Smooth bore, polished finish minimizes friction and reduces heat build-up for long ring wear life. 
  • Spring-isolated Base. Eliminates need for special foundations. Compressor and motor are mounted on a common inner base plate. This inner base is mounted on vibro-isolation springs to absorb all vibration. Meets NFPA guidelines for medical air compressors (Over-and under-unit configuration uses elastomeric vibro-isolators). 
  • Bearings. Long-lasting ball bearing design; 100% oil-less. 10,000 hour life on drive set bearings. 20,000 hours on main bearings.
  • Deluxe Control Panel: Designed for Duplex, Triplex, and other multi-sequencing systems. 

Optional Features:

  • Control Panel 
  • Fusible Disconnect Switches 
  • Automatic Tank Drain 
  • Flexible Discharge Line 
  • Vibro-Isolators 
  • Vinyl-Lined or Galvanized Receivers
  • Water-Cooled Aftercooler
  • Remote Intake Air Filter/Silencer
  • High Temperature Shutdown/Lag Compressor Alarm
  • Air Dryer and By-Pass Piping 
  • Downstream Filter Banks and Indicator Gauges


Clean Compressed Air

Gardner Denver has always been at the forefront of air compressor technology. Gardner Denver's PureAir Series oil-less compressors are no exception. We offer 100% duty cycle, sealed anti-friction bearings and filled PTFE rings.

  • Meets NFPA standard requiprements for medical air compressors
  • 100% Oil-Less Operation
  • Compact Footprint
  • Low noise levels



Service and Warranty

Experience Peace of Mind with our Warranty

The engineering philosophy of Gardner Denver ensures long-lasting, reliable equipment. Our simple, but bold warranty programs demonstrate our belief in the quality found in Gardner Denver compressors. 

Our standard 1-year warranty ensures that you have peace of mind when it comes to your system's operation. 

Service Local and Factory-Trained

Gardner Denver... the Answer

You get total product support now and for years to come from our dedicated team of professional distributors.  Providing service to your compressor with genuine replacement parts and highly skilled, factory-trained technicians.

  • Great Compressor Warranties
  • Authorized, Factory-Trained Compressor Distributors
  • Genuine Compressor Replacement Parts
  • 24-hour compressor service support

For more information, or if you need help locating a compressor sales or service professional in your area, use the Find a Distributor under the How Can We Help on the right side of the page.