Controlling airborne contaminants at work; A guide to local exhaust ventilation (LEV)
Third Edition, Published by HSE 2017
This is HSE’s current guide on LEV and related topics. Here you will find recommended Duct Velocities, Captor Velocities, Face Velocities, and other design criteria.
The various types of hoods, filters, fans and discharges are all described.
Sections on Manuals and Log Books, LEV Examination and Testing protocols and Benchmarking
Available to buy a hardcopy or download PDF for free.