11/07/2025
The Compressed Air & Gas Institute announced the release of its newly published Compressed Air Purity Guide.
This essential resource offers a deep dive into the ISO 8573-1 standard, the globally recognized benchmark for compressed air purity. Whether you're working with plant air, instrument air or process air, this guide helps you understand how to achieve and maintain the right purity level to protect compressed air systems.
Air surrounds everything we create and consume. But when airborne contaminants – manmade or natural – enter your compressed air system, they can cause equipment failure, product contamination and costly downtime. That’s why understanding and applying the ISO 8573-1 standard is critical.
This guide will cover the composition of atmospheric air and how it impacts compressed air systems, as well as the risks posed by particles, water and oil contamination. It reviews how to apply ISO 8573-1 to classify and achieve desired purity levels and equipment selection strategies to meet purity requirements for different applications. Whether you're in food production, pharmaceuticals, manufacturing or utilities, this guide is a roadmap to cleaner, safer and more efficient compressed air.
The Compressed Air Purity Guide is now available for free download on the CAGI website.
About Compressed Air & Gas Institute
For more than 100 years, the Compressed Air and Gas Institute has been the leading source on all matters related to compressed air. As the united voice of the industry, CAGI’s activities include the development and organization of educational material about compressed air systems and equipment as well as training programs to benefit users of compressed air systems. In addition to information on data sheets, performance verification and training, the CAGI website offers many resource materials such as selection guides, videos and standards. For more information, visit https://www.cagi.org.
