You are not logged in

RPE Fit Testing – Quantitative using the ambient particle counting method


Tight-fitting Respiratory Protective Equipment (RPE) needs to fit the wearer's face well in order to work correctly and provide the expected protection. As faces come in all shapes and sizes, each wearer needs to be supplied with a facepiece which matches their face. Fit testing demonstrates how well a facepiece matches the individual's face. It is used to select a facemask which is a good match for them. HSE's relevant Approved Codes Of Practice (ACOP) require that fit testing be carried out as part of the initial RPE selection process, to ensure that the wearer has the correct facepiece.

This course will explain the importance of fit testing, the responsibilities of employers and introduce fit testing using the Ambient Particle Counting (APC) method. The course will cover all the fit testing criteria set out in HSE's fit testing guidance document INDG 479. Practical sessions will cover the essential skills of pre-use checking and correct donning of facepieces, before going on to provide opportunity to practice fit testing using the APC method.

This training course will provide a good foundation on which to build practical fit testing skills. To become a competent fit tester will require considerable additional practice and experience. More information on demonstrating fit testing competency can be found on the Fit2Fit accreditation website at

All course presenters are Fit2Fit accredited fit testers.

What this course will cover:CPD Certified

  • Understanding the importance of fit testing
  • Principles of fit testing
  • Essential pre-use checking and correct donning of facemasks
  • Responsibilities of employers and fit testers
  • Quantitative fit testing using the APC - theory and practical
  • Troubleshooting

Who should attend:

Individuals who are seeking knowledge in the principles of fit testing and to develop practical experience in carrying out fit testing. The course is also suitable for those with the responsibility for correct selection of respiratory protection.


The course will be run at the HSE Science and Research Centre in the spa town of Buxton. Buxton is in the heart of the Peak District and has good links to mainline train stations and Manchester International Airport.

Details of hotels in the Buxton area can be found at


The cost of this course is £650 per person (includes course notes, lunch and refreshments).

Please note that all courses must be paid for via credit card at the time of booking.

For further dates and additional information email: or contact the Training and Events Team at HSE directly on +44 (0)203 028 3704.

Back to HSE Health and Safety Training Grouped Courses

Back to the top