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The Knowledge Base for LEV

Minor modifications: ITT – smoke test

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This is a case study on the HSE website which looks into how minor modifications to an LEV Hood can make significant improvement to a tracer smoke assessment. ITT used booths to control exposure to harmful gases, mists and vapours emitted during cleaning of metal components. When smoke tests were used to check the effectiveness…

HSE Case Study Schools Wood dust

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A tale of two new schools. The problem Wood dust is a hazardous substance arising from the use of woodworking machines. Breathing in wood dust can cause asthma. However, it is easily controlled by using local exhaust ventilation (LEV). Two new schools had very different experiences when it came to installing LEV in their woodworking…