Raising Standards in LEV & Occupational Hygiene
Local Exhaust Ventilation (LEV) systems are critical control measures in workplaces where hazardous substances are generated, handled or processed. When properly specified, installed, maintained and tested, they protect workers from exposure to carcinogens, respiratory sensitisers and other harmful airborne contaminants.
However, regulatory inspections and long-term health statistics consistently demonstrate that many LEV systems are poorly maintained, inadequately examined or insufficiently understood.
Occupational lung disease remains a significant and preventable cause of ill health. Exposure to respirable crystalline silica, welding fume, metalworking fluids and other hazardous substances continues to result in avoidable disease and premature mortality.
Improving competence within the LEV & Occupational Hygiene sectors is therefore not optional — it is essential.
OXYL8 exists to address this competence gap.
Our Purpose
OXYL8 was established to improve professional standards across the LEV and Occupational Hygiene sectors through high-quality, performance-focused training.
We deliver BOHS-approved qualifications including:
- P601 – Thorough Examination & Testing of LEV Systems
- P602 – Basic Design Principles of LEV Systems
- P603 – Control of Hazardous Substances
- P604 – Performance Evaluation of LEV Systems
- P304 – COSHH & Workplace Monitoring
- M200 – Basic Principles in Occupational Hygiene
- M501 – Measurement of Hazardous Substances
- M505 – Control of Hazardous Substances
- M507 – Health Effects of Hazardous Substances
- Specialist topic area Masterclasses and skills maintenance programmes
Our approach is grounded in practical application, regulatory understanding and engineering competence — not simply examination preparation.
Training is a fundamental step towards competence. Competence underpins safe design, effective maintenance, reliable examination and robust duty holder compliance.
Professional Standing & Endorsement
We actively support professional development pathways within the industry, including those provided by:
- BOHS (British Occupational Hygiene Society)
- Society of Operations Engineers
We believe that recognised qualifications form part of a structured pathway towards professional credibility and improved industry standing.
Leadership & Expertise
OXYL8 training is led by experienced practitioners with deep sector knowledge.
Bill Cassells, Lead Tutor, is a former HM Inspector of Health and Safety with a research degree in Ventilation Engineering and more than 35 years’ experience in LEV. He is a recipient of the BOHS Thomas Bedford Gold Medal for outstanding contribution to worker health protection.
Dan Colledge, Principal Tutor, CoC(Control), LFOH(S) is the former LEV and Microbiological Safety Cabinet (MBSC) Subject Matter Expert for GSK plc and is a specialist in delivering the P600 amd M500 series of training courses. He has indepth knowledge and undertanding of the phramaceutical sector.
Hazel Griffiths, Principal Tutor, CoC(Control), LFOH(S) is a graduate chemist with extensive industrial experience and remains actively engaged in LEV design, examination and mentoring activities. She provides structured post-course mentoring support where additional guidance is required.
Our tutors combine regulatory insight, engineering depth and practical experience — ensuring that learning is grounded in real workplace application.
Our Commitment
At OXYL8, we are committed to raising standards across the industry.
We deliver:
- Practitioner-led training
- Participative and technically robust courses
- Content tailored to sector and role
- Comprehensive course materials
- Structured post-course support and mentoring
- Ongoing skills maintenance Masterclasses
Our objective is not simply course attendance — it is improved performance in the workplace.
The Wider OXYL8 Platform
OXYL8 operates within a broader industry ecosystem including:
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LEV Central – Industry knowledge and resource platform
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LEV Jobs – Sector-specific recruitment platform
-
LEV Shop – Specialist equipment and technical supply
Together, these platforms support competence, connectivity and professional development across the LEV community.
Moving Forward
As regulatory scrutiny increases and awareness of occupational lung disease continues to grow, competence in LEV and Occupational Hygiene becomes ever more important.
OXYL8 remains committed to supporting duty holders, engineers, consultants and technicians in achieving recognised qualifications and maintaining professional standards.
View our Training Courses → OXYL8 Homepage