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Testing for Microorganisms in Compressed Air

Halting the Growth of Microorganisms

Potential for growth of micro-organisms in a compressed air system is tied to the moisture level (dew point) of the compressed air. In simple terms, if there is moisture in your compressed air, microorganisms such as mold and bacteria have the environment they need to grow and thrive. While itโ€™s true that as air is compressed, much of the moisture present in the intake air will condense, enough moisture remains to allow micro-organisms to proliferate.

Air Testing

Compressed air testing should be a fundamental safety mechanism for your facility, like fire extinguishers and PPE. To ensure that your air systems meet the new requirements, youโ€™ll need a carefully designed and implemented Compressed Air Monitoring Program to verify the effectiveness of your facilityโ€™s air filtration, air drying, and air system maintenance. A good starting point is a professional audit of your system for compressed air or other gases. A comprehensive air audit includes these elements:

Would you like to discuss compressed air testing more in-depth with a local compressed air expert? Contact us today!

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Who we are and how Ash Air can help your business!

Ash Air has been around in New Zealand since 1979, and weโ€™ve grown into a nationwide company with international support and a reputation for quality and reliability.We look after all things compressed air for your business!

  • Reciprocating, Screw, air compressors
  • Vacuum pumps
  • Nitrogen
  • An extensive line of air treatment components

Ash Air's range of Chicago Pneumatic, Alup, Pneumatech, and Quincy compressors are used extensively around the world in industries ranging from oil and gas to food, automotive and farming, and we bring you these world class compressors here in the land of the long white cloud.Our technicians are compressed air equipment experts and are dedicated to addressing customer needs. Supported by a 13 locations nationwide, Ash Air offers one of the widest selections of compressed air equipment and parts available today in New Zealand.

Reliability and Efficiency

With Ash Air compressors, you can count on reliability and high performance for even the most demanding applications. We focus our efforts on the following:

  • Increasing uptime
  • Reducing unexpected repairs
  • Reducing energy consumption
  • Improving the cleanliness of compressed air


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Read more from our #expertcorner


Just like any other equipment, a compressed air installation also requires the necessary maintenance work during its entire lifespan. Even though maintenance costs are only about 5 to 10% of a machine's annual operating costs, failure to budget for maintenance can have potentially disastrous consequences.


The air dyer is one of the most ignored cooler in the system. A dirty condenser will cause water in the lines, or worse it will cause complete dryer failure.