OHS Code

Published Date: July 01, 2009
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Part 26 Ventilation Systems

Section 387 Design

(1) An employer must ensure that a ventilation system is

(a) designed, installed and maintained in accordance with established engineering principles, and

(b) maintained and operated according to the manufacturer’s specifications.

(2) An employer must ensure that

(a) externally exhausted air from a ventilation system is, if reasonably practicable, prevented from entering a work site,

(b) make up air of a volume that does not compromise the effectiveness of the ventilation system and other ventilation systems is provided, and

(c) if it is a recirculating air system, the concentration of a contaminant controlled by the ventilation system and discharged within the work site from the system, if reasonably practicable, does not exceed 10 percent of the contaminant’s occupational exposure limit.