Local Exhaust Ventilation (LEV) : A ventilation system that collects contaminants close to the source (normally via vacuum). LEV is preferred to dilution or general ventilation
Martin Ralph (Managing Director, IFAP), Industrial Foundation for Accident Prevention (IFAP): Safer Healthier Workplace, IFAP Glossary of Terms, 4th Ed. Willetton Western Australia 2010. http://www.ifap.asn.au/Documents/courseinfo/IFAP_G lossary_of_Terms.pdf, (IndS - Brit) {633}