The Compressed Air Wiki

We want to help you learn anything you want to know about compressors and compressed air systems.

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Air treatment

Air treatment

Basic Theory

Basic Theory

Compressors

Compressors

How To

How To

Trends

Trends

Nitrogen

Nitrogen

Oxygen

Oxygen

Installation Guidance

Installation Guidance

Just bought a compressor and need some assistance with installing it? Look into our installation guides, or contact one of our colleagues!

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Understanding R454C refrigerant

30 April 2026

Blue oxygen tanks. Bundle of gas cylinder and high pressure gauges, meter, valve. Many argon cylinders with compressed gas for industry, welding. Fuel manufacturing. Liquefied gas production, factory

F-gas regulations: What you should know

30 April 2026

Understand the EU F-gas regulation, the latest updates, compliance requirements, and how it impacts refrigerants and your business.

an illustration about compressor installation

Determine the ideal working pressure

20 April 2026

Dimensioning a compressed air installation requires several key decisions to ensure the system meets application requirements, operates efficiently, and remains flexible for future expansion. On this page, you’ll learn how working pressure influences system performance, and how to calculate it correctly.

Air compressor moisture trap: what you need to know

7 April 2026

Learn how air compressor moisture traps remove water vapor to protect your system. Read our article on water separator sizing, installation, and maintenance.

How desiccant air dryers work: principle, types & applications

24 March 2026

A desiccant air dryer removes moisture via adsorption using materials like silica gel or activated alumina. Learn about heatless, blower purge, and zero-purge types.

How long does it take to replace a compressor?

24 February 2026

Get a clear overview of how long compressor replacement takes based on system size, installation complexity, and required upgrades. Learn typical timelines for different compressor types and how to plan downtime effectively.

How to reduce air compressor costs and energy bills

25 November 2025

Learn how to reduce compressed air energy costs by fixing leaks, optimising pressure, upgrading compressors and recovering waste heat.

How nitrogen or oxygen purity affect their cost

10 October 2025

The vast majority of professional nitrogen and oxygen applications do not require gas with an extreme purity, which makes this an area in which businesses can realize substantial savings. Because tailoring gas purity to your needs is always the optimal and most-efficient solution.

an illustration about a basic theory article in the atlas copco air wiki

Understanding air compressor measurements: work, power, and flow

3 September 2025

A quick guide to compressor measurements that help you match power and size to your application.

Heat pump in spray drying process

23 June 2025

Learn how heat pumps can revolutionize the spray drying process in the food industry by reducing CO2 emissions and optimizing waste heat recovery.