Valid for 3 years Valid for 3 years
Training Tunnels Equipment Training tunnels
Experienced Trainers (Expertise and Experience) Expertise and Experience
Nationwide (UK Wide Coverage) UK Wide Coverage


2 day course
Theory 220 minutes
Practical 570 minutes
Assessment 170 minutes

Breaks for refreshments are included in this overall total

Book from £555

This Open Circuit Breathing Apparatus course is for those who are required to wear breathing apparatus for respiratory protection as part of their job role – or in cases of emergency.

This course teaches those who attend how to inspect, put on, wear and take off open circuit breathing apparatus – and the aftercare of such equipment. This course is taught for those who work in industrial environments – and is not for those who may need this training for firefighting or emergency work.

This course is a mixture of theory and practical training - delegates are required to be clean-shaven as facial hair could prevent a good seal between the wearer’s face and the breathing apparatus mask.

Due to the nature of the training course and the emphasis placed on communication, there is only a provision for the assessments to be undertaken in English. Therefore, candidates for this type of training must be able to understand and speak the English language. 

On this course – delegates will learn how to wear and use open circuit breathing apparatus. Delegates will learn how to inspect and use the apparatus safely – so they are able to undertake specific jobs in their workplace.

This course will teach delegates about the safe working periods when using breathing apparatus (BA) – and simple BA calculations. Delegates will also learn about the relevant legislation – and how to carry out pre-wear checks, put on, clean and store BA.

This course is highly practical – and delegates will learn and use equipment in simulated confined spaces.

Topics covered:

  • Understanding the anatomy and physiology of respiration
  • Understanding how an open circuit breathing apparatus operates
  • Understanding requirements placed on an open circuit breathing apparatus wearer
  • Conducting pre-donning checks and tests on open circuit breathing apparatus
  • Donning and checking breathing apparatus
  • Operating the open circuit breathing apparatus
  • Knowing the after use care of open circuit breathing apparatus

To view the full course timetable click here

This course is taught by highly experienced instructors – most of whom have worked in hazardous environments where open circuit breathing apparatus was worn.

As well as working experience, many of our trainers are also real-life rescuers – who have been part of emergency operations in the UK and around the world.

This Open Circuit Breathing Apparatus course complies with HSE guidelines, BS EN 529: 2005 Respiratory Protective Devices, and meets the requirements of the National Occupational Standards for confined space entry (City & Guilds 6150).

To pass this course – delegates must pass a practical assessment of their use of open circuit breathing apparatus – and a written test on the subject. If successful – delegates will receive an industry recognised MRS certificate

Certification is valid for 3 years. If you need to renew your certification – take one of our refresher courses.


1 trainer to 12 candidates (1:12):

  • Theory training and assessment

1 trainer to 6 candidates (1:6)

  • Practical training and assessment 

If you book this course online, you can pay for the course by debit or credit card.

If you wish to pay via an invoice, please enquire about the course and our team will contact you to complete the booking.

Courses start at 8.45am and finishes at about 3.30pm

Yes – all candidates are required to bring the following for practical exercises: • Hard hat • Overalls • Safety footwear • Gloves

Yes - delegates are required to be clean-shaven as facial hair could prevent a good seal between the wearer’s face and the breathing apparatus mask.

Course materials, refreshments and a light lunch are provided.

MRS certificates are emailed within a week of the course being completed.

Joining instructions are sent by email – which are usually received on the same day but always within 48 hours of booking.

Yes - subject to our terms and conditions.

Yes, free parking is available at all our UK training centres for course candidates.

Out of the three different breathing apparatus trainers I have used over the years I can say MRS Training & Rescue have been by far the most authentic and pragmatic and have the best training galleries.
Nottingham City Council
Equipment is of a high standard, and the trainers know exactly what they're doing and talking about, and we're always happy to help.
Kane Saunders
Good practical hands-on sessions coupled with classroom work. Thoroughly enjoyed it.
Phil Cockton
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The Benefits

  • We are a leading authority in confined space and at height technical rescue and we never rest in our goal to keep people safe.

  • We practice what we preach – our trainers are also operational rescue team members – so have real life stories to make the theory come alive.

  • We deliver best-in-class training so that anyone attending courses leaves capable of applying the knowledge to real-life situations.

  • Most of our courses are highly practical and feedback from delegates is excellent.

  • Nationwide service from our eight Training and Rescue Centres across the UK.

  • Are employed by us and trained to our own exacting standards.

  • Have real-life experience of working in high-risk environments and often share these with candidates.

  • Understand recognised learning styles and quickly adapt their delivery based on the needs of those being trained.

  • Ensure delegates are engaged by punctuating training with tests, quizzes and practical sessions.

  • Where possible, include information specific to delegates’ working practices so they leave ready to apply the learning in their day-to day roles.

What our customers say...

5 stars, 1637 reviews

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With real life stories to make the theory come alive