Consultation

30-Minute Online or Telephone Expert Session

Practical Advice on LEV Design, COSHH Reg 9 Testing & Professional Development

Local Exhaust Ventilation (LEV) is a specialist field where real-world judgement matters just as much as guidance documents and calculations. Many practitioners, engineers, duty holders, and safety professionals encounter situations where the answer isn’t found neatly in HSG258 — but in understanding how systems behave in practice.

These 30-minute one-to-one online consultation sessions are designed to give you direct access to experienced, independent LEV expertise, tailored to your specific questions, challenges, or career development needs.

What These Sessions Are For

This is not generic training — it’s focused, practical discussion on your real LEV problems.

Typical topics include:

LEV Design & Specification

• Sense-checking LEV designs before installation

• Hood selection and positioning

• Duct sizing, transport velocities, and pressure losses

• Fan selection and system balance

• Make-up air and over-/under-extraction issues

COSHH Regulation 9 – LEV Testing (TExT)

• What “pass or fail” really means in practice

• Interpreting quantitative data (velocity, pressure, ΔP)

• Identifying design limitations vs maintenance failures

• Dealing with borderline systems and difficult decisions

• Writing defensible LEV reports

Practical Fault Finding

• Why systems don’t perform as expected

• Common failures in filters, fans, ducting, and hoods

• Understanding differential pressure trends

• Recognising uncontrolled emissions and leakage

• Real-world causes of poor capture at the hood

Mentoring & Professional Development

• Building confidence as an LEV tester or designer

• Preparing for BOHS modules or PCerts

• Developing engineering judgement beyond the numbers

• Reviewing real reports, schematics, or site issues

• Career progression within LEV and occupational hygiene

How the Consultation Works

• Duration: 30 minutes

• Format: Online (video or audio — your choice)

• Delivery: One-to-one, confidential session

• Focus: Your questions, your systems, your challenges

You are welcome to:

• Bring sketches, photos, or data

• Discuss a specific site or system

• Ask “what would you do here?” questions

• Use the time for mentoring rather than problem-solving

What This Is — and What It Isn’t

This Is:

• Independent, experience-based guidance

• Practical interpretation of standards and guidance

• A safe space to ask questions you can’t ask on site

• Support for better decision-making and confidence

This Isn’t:

• A formal LEV Thorough Examination and Test

• A signed-off design approval or legal certification

• A substitute for site-specific inspection or measurement

• Generic classroom training

Why Book a 1-to-1 LEV Session?

LEV failures rarely happen because people don’t care — they happen because systems are misunderstood, guidance is misapplied, or practical limitations aren’t recognised early enough.

A short, focused discussion can:

• Prevent costly design mistakes

• Improve report quality and defensibility

• Clarify difficult COSHH Reg 9 decisions

• Build long-term competence and confidence

• Save hours of uncertainty and rework

Who These Sessions Are For

• LEV engineers and COSHH Reg 9 testers

• Health & safety professionals

• Occupational hygienists

• Designers and consultants

• Employers and duty holders responsible for LEV

Whether you’re early in your LEV career or highly experienced but facing a tricky system, these sessions are designed to meet you where you are.

Booking & Availability

• Sessions are booked in 30-minute slots

• Available online by appointment

• Follow-up sessions can be booked as required

• Suitable for ad-hoc advice or ongoing mentoring