This Standard establishes minimum requirements for the commissioning, design, specification, construction, and installation of fixed industrial local exhaust ventilation (LEV) systems used for the reduction and prevention of employee exposure to harmful airborne substances in the industrial environment.
ANSI/AIHA Z9.2-2001 history
2001ANSI/AIHA Z9.2-2001 Fundamentals Governing the Design and Operation of Local Exhaust Systems