Thorough Examination and Testing of Local Exhaust Ventilation Systems IP601

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 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.  

Different countries use different levels, but this qualification is comparable to level 4 in the Regulated Qualifications Framework in England and level 5 in the European Qualifications Framework. 

How is it delivered?

The IP601 course is typically conducted over four days, which comprises a minimum of 28 hours of learning time*. This includes 22 hours of teaching time and 6 hours of independent study (in your own time).  

The course can be delivered more flexibly, such as one day per week, but should still include 22 hours of teaching time. 

*This is 4 hours additional teaching time than the UK P601 course; this extra time is not necessary if you are more experienced. 

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:

  • Further information can be found in the course specification, together with report submission forms and guidance, under the ‘Downloadable Resources’ information box above.
  • BOHS Online Exam information and FAQs - Click here 

In addition, the following supporting documentation will be made available to Approved Training Providers once approved by BOHS:

  • A support pack for tutors which provides sample examination questions and guidance on the written examinations.

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