About OXYL8


Consider this: an HSE survey undertaken a few years ago found that for controls, and specifically for Local Exhaust Ventilating (LEV) plant:

  • Approximately 60% were not subject to routine maintenance or checking
  • Approximately 60% were not being Thoroughly Examined and Tested (TExT)
  • Approximately 60% of those that were being Thoroughly Examined and Tested were not being tested ‘competently’.

HSE’s statistics show that rates of occupational ill health have not reduced in line (or anywhere like it) with physical injury rates over the past 25 years.  Ill health due to occupational exposures currently accounts for around 12,000 unnecessary deaths a year.

HSE estimates that there are around 5oo deaths in the Construction sector alone from exposure to respirable crystalline silica; that there are approximately 1500 new cases of occupational asthma each year and thousands of new cases of COPD (Chronic Obstructive Pulmonary Disease).

So – it should come as no surprise that HSE’s annual Work Plan for Occupational Lung Disease continues to focus on premises where they are producing/handling Carcinogens ans Respiratory Sensitisers.  Premises where ther are undertaking welding, handling metalworking fluids and where there may be exposures to other substances which may cause respiratory disease will be their focus for inspections during the next few years!

These are some of the drivers which determine why we at OXYL8 are committed to improving LEV industry standards through providing approved BOHS training courses (P601, P602, P603, P604 etc), the IOHTA W201 basic Occupational Hygiene training course and our recently introduced skills update and maintenance MasterClasses.

Professional Endorsement, Approved Qualifications

It is our commitment and our passion to do everything we can to raise the professional standing for everyone working in the LEV Industry. Particularly so for those involved in the managing, specifying, design, installation, maintenance and examination/testing of LEV plant.

Core to this strategy is – through LEV training – the gaining of appropriate LEV knowledge, a fundamental step on the path to improved competence.

OXYL8 supports and endorses the professional development options available through these organisations:


Bill Cassells, our lead tutor is a former HSE HM Inspector of Health and Safety with a research degree in Ventilation Engineering and over 35 years’ experience in LEV. Bill is the holder of the BOHS Thomas Bedford Gold Medal for “outstanding contribution to worker health protection“.  He is also truly passionate about all things LEV :-).


Hazel Griffiths is a principal tutor with OXYL8.  Hazel is a graduate with extensive industrial experience as is still very ‘hands-on’ with LEV projects (TExT, Design etc).  She also offers direct Mentoring services to OXYL8 delegates where additional guidance and support is required.


We believe that training, leading to a recognised qualification, is a key step towards  achieving competence in LEV and thereby also ensuring that those within the LEV industry reach the higher professional recognition and standing that they and the profession deserves.

In conducting our training courses Bill and Hazel bring a fresh approach to the subject of LEV training, all delivered in the reknowned OXYL8 very individual, lively, yet professional style.

Our Commitment

  • Every OXYL8 trainer is an expert in their field and has extensive training experience
  • LEV Courses are participative and highly engaging
  • LEV Training courses tailored to the specific needs of the target audience/client
  • Our training courses are designed to be relevant and appropriate
  • Full training support material provided
  • Comprehensive post-LEV training delegate support/Mentoring available.

View OXYL8 courses.

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