Methods for Testing the Performance of Local Exhaust Ventilation Systems P600

This course focuses on the fundamentals of LEV systems, from their components to measurement and testing techniques. It will give you the necessary skills and knowledge to progress into careers that involve using LEV testing equipment (e.g. engineers, technicians), and prepares you for taking BOHS level 4 proficiency qualifications. 

Who is it for?

This course is suitable for anyone who:  

  • Is responsible for operating or maintaining LEV systems as part of their work (e.g. engineers, managers, supervisors, equipment designers, technicians) 
  • Wishes to train to become an LEV tester, technician or maintenance engineer 
  • Requires a basic level of understanding of LEV systems to take a Level 4 Proficiency qualification (P601-4)


The level of a course or qualification indicates the relative complexity and depth of knowledge and skills required to complete the course or qualification.  

This is a level 3 qualification in the BOHS qualifications framework. 

How is it delivered?

The P600 course runs typically over one day and includes at least six hours of teaching. 
The course can be delivered more flexibly, such as an evening or part-day course, but should still include six hours of teaching.

Modules / Learning objectives

Overall objective 

To enable you to identify and correctly use appropriate flow visualisation and measurement techniques to test the performance of local exhaust ventilation (LEV) systems. 


  1. Basic components of local exhaust ventilation systems 
  2. Qualitative visualisation techniques 
  3. Quantitative measurement techniques 
  4. Practical work 


You must pass a 30-minute multiple-choice examination within 12 months 


BOHS provides: 

  • A comprehensive Student Manual, which covers the full range of subject areas included in the qualification 
  • A support pack for tutors

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