BAQ Testing

Professional Breathing Air Quality Testing to EN 12021 Standards

Breathing Air Safety & Compliance

Breathing air quality testing helps ensure compressed air systems are safe, compliant, and suitable for use with breathing apparatus and respiratory equipment.

Our BAQ testing service checks air quality against EN 12021 standards, helping protect workers and support your health and safety responsibilities. We provide clear certification and reporting, giving you confidence that your air supply meets the required standards.

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Odour & Air

Checking air quality and ventilation performance.

Moisture/Dew Point

Preventing excess water content that can damage systems and affect air quality.

What Does BAQ Testing Check?

We test the critical elements that affect breathing air safety, quality, and compliance.

Oxygen levels

Ensuring safe oxygen concentration for breathing air systems.

Carbon Monoxide (CO)

Detecting harmful gases that can be dangerous even at low levels.

Carbon Dioxide (CO2)

Checking air quality and ventilation performance.

Oil Vapour & Mist

Identifying compressor contamination within the air supply.

Why Is Air Quality Important?

Good air quality is essential for maintaining safe, efficient, and reliable working environments across all industries.

Poor or contaminated compressed air can impact product quality, compromise equipment performance, reduce operational efficiency, and pose health risks where breathable air systems or respiratory protective equipment are used.

Regular air quality testing helps organisations maintain compliance, protect employees, support consistent operations, and ensure compressed air systems remain clean and fit for purpose.

Air Quality Compliance Requirements

Businesses using compressed air for breathing apparatus, manufacturing processes, industrial applications, and pneumatic equipment should ensure air supplies are regularly monitored and maintained to recognised breathing air quality standards.

Routine testing helps demonstrate that compressed air systems are operating correctly and that harmful contaminants remain within acceptable limits, helping support workplace safety, compliance, and system reliability.

Breathing air should be tested against EN 12021 quality requirements

Compressors and filtration systems should be regularly serviced and maintained

Employers should keep records of testing, maintenance, and corrective actions

Air systems should be monitored for contaminants such as CO, CO₂, oil vapour, and moisture

Employee responsibilities in the UK

In the UK, EN 12021 is a recognised standard used to support compliance with legal duties under:

Health and Safety at Work etc. Act 1974
COSHH Regulations
PPE at Work Regulations

Employers must ensure breathing air is safe, regularly tested, properly maintained, and fully documented. If air quality is unsafe, immediate corrective action is required.

Failure to comply may lead to HSE enforcement, fines, prosecution, and risk to worker safety.

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