46 Principles of industrial ventilation system design and operation

This PDC provides the occupational hygienist with the fundamental principles pertinent to the effective and efficient use of industrial ventilation to control employee exposures to toxic substances or agents. Presented at an introductory-to-moderate level, the PDC will address the following topics: •The occupational hygiene hierarchy of control measures applicable to protecting the health of employees in the workplace. •The importance of understanding the properties of the air that will be captured, conveyed, and controlled by the industrial ventilation system. •Types of industrial ventilation system records and documentation and their importance. •Successful hood design to effectively capture and control the contaminant of interest. •Energy-efficient duct components and industrial ventilation system design considerations. •A basic understanding of air contaminant control devices and industrial fans. •The relevance of industrial ventilation system exhaust stack design to the successful control of air contaminant exposures. •“Goes-outas equals goes-intas,” or, the relevance of ensuring the appropriate amount of replacement air in workplaces where industrial ventilation systems are utilized. •The value of validating industrial ventilation system performance and implementing a successful industrial ventilation system monitoring and preventative maintenance program. The important connection between industrial ventilation systems and change management programs.