DOSH Assessment

Local Exhaust Ventilation (LEV) System What is LEV?
Many work processes create harmful dusts, vapours and fumes that contaminate the air. Breathing substances hazardous to health can cause lung diseases such as occupational asthma, bronchitis and silicosis. It may also result in harm to other organs, such as the liver, kidneys and brain.

LEV is an engineering system


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