Are you getting it right with compressed air in the UK?
Many businesses around the UK will use compressed air as a core utility to their business, for manufacturing production lines, compressed air tools, cleaning lines and so on.
However, using compressed air comes with legal responsibility. Health and safety legislation in the UK can be complex for business owners to keep up with, or even know where to start when it comes to compressed air.
However, this legislation is there for a reason, with hefty fines, lost production and lost revenue, as well as safety risks, all possible with non-compliance.
We have put together a comprehensive compressed air compliance guide for the UK, to help business owners, safety managers and maintenance managers to understand their responsibilities, and more importantly, how to address them to protect your people, your products and your business.
Understanding Your Core Legal Duties
Compliance for a compressed air system rests on a hierarchy of UK legislation. At the top, the Health and Safety at Work etc. Act 1974 sets the foundation, requiring you to provide a safe workplace. Below this, two key regulations apply directly to your equipment:
The Pressure Systems Safety Regulations 2000 (PSSR) focus on preventing dangerous failures from stored pressure and are the primary law governing compressed air systems.
As for The Provision and Use of Work Equipment Regulations 1998 (PUWER), these deal with compressors as machinery, making sure they’re safe to run and fitted with the right guards and controls.
Navigating these regulations is critical for the safety of your workforce. We offer professional Air Compressor Service in Birmingham to help local businesses manage their inspections and maintain full compliance with UK law.
The Heart of Compliance: PSSR 2000 Explained
If you use compressed air in your business, you cannot afford to be ignorant of PSSR. Regulations apply to any system above 0.5 bar, but the strict duties apply above a certain level of pressure-volume.
What Triggers a Formal Inspection?
You only need to consider a formal inspection scheme once your system’s pressure vessel is over 250 bar-litres. Work out the size of your system in bar-litres by multiplying its volume (litres) by its maximum working pressure (bar). A typical 500-litre receiver at 10 bar is 5000 bar-litres. It’s that simple. Once you know your system size, you will know whether you need a statutory inspection plan or not. We can help you stay on top of your status and ensure you don’t inadvertently fall foul of the law.
The Written Scheme of Examination (WSE)
The core of PSSR is the Written Scheme of Examination (WSE). This is your legally required inspection plan. Operating a pressure system without a current WSE isn’t just risky — it’s illegal, and it could stop your operations overnight.
The WSE must identify:
- All pressure vessels and significant pipework to be examined.
- The protective safety devices.
- The required nature of the examination for each part.
- The maximum safe interval between examinations.
The Role of the ‘Competent Person’
A WSE must be created or certified by a Competent Person—an expert with the technical knowledge to assess your system. Critically, they must be independent from your day-to-day operations to ensure their judgment is impartial. Our independent Competent Person service ensures your WSE is compliant and your inspections are carried out to the highest standard.
Air Quality Standards: Protecting Products and People
The quality of the air your system produces is also subject to strict standards. Our team provides accredited testing for both industrial and breathing air to help you meet these requirements.
ISO 8573-1 for Industrial Air Purity
This is the global benchmark for air purity, classifying contaminants like particles, water, and oil. Meeting the right class is vital for protecting product quality and your brand’s reputation.
Testing frequency depends on your industry—from semi-annually for food and pharma to annually for general manufacturing. Ensuring you have the right equipment is essential—learn more in our guide to the Importance of Compressed Air Quality & Filters.
BS EN 12021 for Breathing Air
Contaminated breathing air can be deadly. That’s why BS EN 12021 sets clear limits for carbon monoxide, carbon dioxide, oil, and other impurities. Following these limits keeps your teams safe and reduces compliance risks.
To keep users safe the Guidance Document says Breathing Air Quality Testing must take place at least once every three months.
Managing Associated Hazards and Environmental Duties
A full compliance strategy looks beyond the compressor itself.
- Noise: The Noise at Work Regulations 2005 require action when exposure exceeds key benchmarks like the Lower (80 dB(A)) and Upper (85 dB(A)) action values. Managing this protects your team’s hearing and prevents potential claims.
- Oil Mist (COSHH): Oil-lubricated compressors can release oil mist, a hazardous substance. Using certified Class 0 oil-free compressors eliminates this risk entirely.
- Condensate Disposal: The oily water from a compressor is hazardous waste. It’s illegal to discharge it into a drain if it contains more than the 20 parts per million (PPM) oil limit. To learn how to treat this waste and avoid heavy fines, see our guide on Air Compressor Condensate and How to Manage It.
The Business Case: How Compliance Drives Efficiency
A proactive approach to compliance is also an investment in your bottom line.
Tackling Costly Air Leaks
Air leaks can waste 20-30% of your compressor’s energy. Our team provides systematic leak detection surveys using ultrasonic equipment to pinpoint these costly leaks, and the resulting energy savings often provide a rapid return on investment.
Strategic Energy Management
Variable Speed Drives (VSD) are available in most of Atlas Copco’s compressor models. This technology allows users to adjust the motor speed according to their air demand, with modern VSD compressors capable of saving up to 50% in energy consumption.
You can get a comprehensive, data-led route to optimisation from our team’s Energy Audit for Air Compressors service. In addition, solutions like Atlas Copco’s SMARTLINK monitoring system, which provides a complete and auditable log of system performance, can prove invaluable during an HSE inspection.
Integrating Compliance into Routine Operations
Make compliance part of the daily routine. Build monitoring and servicing into normal operations so your system stays efficient and is always ready for its next PSSR inspection.
The Real Consequences of Getting It Wrong
The Health and Safety Executive (HSE) has the power to act when businesses break the law, and those actions can have severe consequences.
- Enforcement Notices: These may include an Improvement Notice, requiring you to fix a breach, or a Prohibition Notice, which can halt an activity on the spot and stop production
- Direct Financial Penalties: Under the Fee for Intervention (FFI) scheme if you are in breach of the law you must pay the HSE’s costs. In the most serious cases, criminal prosecution can result in unlimited fines.
- Reputational Damage: HSE enforcement notices are placed on a public register for five years. They can influence your ability to win contracts and may increase the cost or make insurance unobtainable.
Talk to our team today for a comprehensive review and maintenance plan to ensure your system is safe, efficient, and ready for inspection.