Thorough Examination and Testing of Local Exhaust Ventilation Systems P601

This course gives you a practical and theoretical understanding of best control practice for hazardous substances, the role of local exhaust ventilation (LEV) in this regard, and how to test and maintain LEV systems to a standard which reduces occupational ill-health.  

Who is it for? 

This qualification is suitable for anyone who is responsible for testing and maintaining LEV systems. This could include: 

  • LEV engineers (e.g. TExT/commissioning engineers) 
  • Maintenance managers 
  • LEV system designers 
  • Installation contractors 
  • Occupational hygienists 
  • Health and safety practitioners and managers 
  • The designated 'LEV lead' within a company 

It may also be suitable for those who wish to progress into these job roles. 


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

This is a level 4 qualification in the BOHS qualifications framework. 

How is it delivered?

The P601 course is typically conducted over four days, which comprises a minimum of 24 hours of learning time. This includes 18 hours of teaching time and 6 hours' independent study (in your own time).  

The course can be delivered more flexibly, such as one day per week, but should still include 18 hours of teaching time.

Modules / Learning objectives

Overall objectives 

To provide you with the knowledge and skills to carry out thorough testing and examination (TExT) of local exhaust ventilation systems, to ensure that they are performing to a high standard. 


  1. Workplace control principles 
  2. Ventilation systems and their performance evaluation 
  3. Health and safety during examination and testing of LEV systems  
  4. Practical  
  5. Reporting and documentation 


You must pass four parts within 12 months: 

  • Formative Practical Assessment 
  • Written Theory examination 
  • Written Practical examination
  • Two workplace report submissions 


BOHS provides: 

  • A comprehensive Student Manual, which covers the full range of subject areas included in the qualification 
  • Report submission guidance
  • A support pack for tutors which provides sample examination questions and guidance on the written examinations 

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