Local Exhaust & Ventilation (LEV), Control of Airbourne Contaminants

Overview

Local Exhaust & Ventilation (LEV) is an engineering system designed to reduce employee exposure to airborne contaminants (dust, mist, fume, vapour, gas) in the workplace by capturing the emission at source and transporting it to a safe emission point or to a filter/scrubber.

This course will provide an understanding of risks within the work environment their legal and duty-bound obligations to use control measures as well as best practises to ensure the environment is safe to work in. It will demonstrate knowledge of work exposure limits, control of substances and contaminants becoming airborne.

Training & Content

Duration:  2 days

• Health and Safety guidance an HSG258 legislation
• Control Effectiveness
• Work exposure levels
• Safety compliance
• RPE requirements and selection

• Introduction to HSE HSG258 legislation and statutory requirements
• Application to learners industry (DESAR/ATEX environments)
• Processes and sources
• Effective control (instrumentation and indicators)
• Benchmark exposure levels
• LEV hoods, (enclosures, receiving and capture hoods)
• Flow separation, eddies and turbulence

• Wake effect and partial enclosures
• Capture zone, working zone, breathing zone requirements
• Qualitative and quantitative methods for adequate extraction
• RPE, face fitting masks, FFP 1,2,3 protection, air fed protection
• Safety and compliance checks for systems in operation
• Practical period, on-tool extraction and capture hood extraction

Certification

Upon completion of the 2-day theory, practical training and written test (1 hour) TDR certification for the course will be awarded.

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