OSHA #511 Occupational Safety and Health Standards for General Industry course

What is meant by effective exhaust ventilation?

1. A system that cycles air for temperature control

2. A process solely for removing heat from an area

3. A type of dilution ventilation

4. A method for filtering airborne contaminants

The correct answer is: A type of dilution ventilation

Effective exhaust ventilation refers to a system designed to remove airborne contaminants from a workplace by diluting and expelling them outside, ultimately improving air quality. This type of ventilation works by introducing fresh air into a space and simultaneously exhausting contaminated air that contains pollutants, gases, vapors, and other harmful substances. The focus is on maintaining a safe working environment, ensuring that any harmful exposures are minimized. The goal is not just to manage temperature or humidity but specifically to reduce the concentration of airborne contaminants, which is a key aspect of dilution ventilation. By providing a continuous flow of air, it helps to keep the environment healthy for employees. While other options may relate to aspects of ventilation or air quality, they do not encompass the full definition and purpose of effective exhaust ventilation as it pertains to controlling airborne contaminants. The distinction of dilution ventilation emphasizes its critical role in maintaining a safe and compliant workplace according to OSHA standards.