Compressed air quality according to ISO 8573.1

To express a specific quality according to ISO 8573.1, three digits are used, separated by dots. The first digit indicates the particle concentration, the second indicates the humidity and the third digit the residual oil content including oil vapor. Filling tires, for example, requires quality class 2 for both particle and oil concentration, whereas spray gun and laser cutting requires class 1 particle and oil content. While Class 4 humidity is sufficient for general applications with factory or service air, more complex process engineering processes require Class 2 to Class 1 humidity.

In our solutions for branches and applications we describe which typical compressed air quality standards are needed in different fields of application.

Compressed air treatment with a system

The compressed air schedule shows an overview with all possibilities. How to achieve a certain compressed air quality with which compressed air preparation products.

Compressed air is an important source of energy in almost all industries. The required quality varies from industry to industry and from application to application. However, the desire for optimal production processes, safe systems and cost-efficient operation remains the same. We fulfill these requirements on the way from the compressed air generator to the application with safe, reliable and globally proven treatment technology. And thus ensure your success!


Quality is not a coincidence

Companies face great challenges in production: if product and process safety depend on the quality of the compressed air, the treatment at the highest level must be ensured at all times. You can only win the trust of consumers if you take responsibility and unconditionally rely on quality assurance. At the same time, the profitability of the processes determines the future viability of the company. An intelligent energy management has the highest priority: In compressed air generation, energy costs often amount to more than three quarters of the total costs, the savings potential in this area is considerable. BEKO TECHNOLOGIES measurement technology helps to identify these potentials.

Sensors from the METPOINT series


Records the dew point of your compressed air via the relative humidity and temperature

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Evaluates savings potential, provides the basis for intelligent energy management and enables the assignment of consumption shares


Precise and reliable differential and/or system pressure monitoring


Highly sensitive ultrasound technology enables detection of even tiny leaks