Certified Healthcare Safety Professional (CHSP) Practice Exam

What is the primary use of a chemical fume hood in a laboratory setting?

1. To store chemicals safely

2. To protect against chemical fumes and splashes

3. To create a sterile environment for procedures

4. To provide a place for waste disposal

The correct answer is: To protect against chemical fumes and splashes

The primary use of a chemical fume hood in a laboratory setting is to protect against chemical fumes and splashes. This safety device is designed to vent hazardous chemical vapors, gases, and aerosols from the laboratory environment, thereby reducing exposure to harmful substances for personnel working in the lab. The fume hood creates a localized airflow that helps to contain and expel hazardous fumes away from the user and into the building's ventilation system. By utilizing a fume hood, laboratory workers can handle volatile or toxic chemicals with an additional layer of safety, ensuring that any harmful emissions are effectively removed, which is crucial when working with reactive or hazardous substances. Furthermore, the structure of a fume hood often includes features such as sash that can be lowered during experiments, providing further protection for the users. While it may seem logical that a fume hood could be used for storing chemicals or providing a sterile environment, these are not its primary functions. Chemical storage requires specific cabinets designed for safety, and sterility is typically managed through different means, such as autoclaves or laminar flow hoods. The disposal of waste is also not a feature of fume hoods; designated waste disposal areas or containers are required for safe waste management in a lab scenario