Compressed Air Smells Like Oil: What It Means

An oily smell in the air supply means oil is carrying over into the delivered air. The cause is usually the separator, oil level or filtration.

Likely Causes

  • A saturated or damaged separator element.
  • Overfilled oil level causing foaming.
  • Failed coalescing filter downstream.

What to Check

  • Inspect the separator and its drain line.
  • Check the oil level against the correct mark.
  • Test downstream filter elements.

Fixing It

  • Replace the separator and filters.
  • Correct the oil level and use the right grade.
  • Restore proper discharge temperature.

Is oil smell in air dangerous?

It contaminates products and can be a health and safety issue. Investigate and fix the carryover source promptly.

Talk to an Engineer

Contact Panrui with your flow, pressure and air quality requirements to get a recommendation and factory quote for your project.