What is the purpose of a biosafety cabinet?

The purpose of a biosafety cabinet is to protect users from biohazards by providing a controlled environment where potentially dangerous biological materials can be handled safely. These cabinets are designed to filter the air before it is released back into the laboratory, preventing contaminants from escaping into the workspace. They also create a barrier between the user and the materials being handled, which minimizes the risk of exposure to pathogens or other hazardous biological agents.

In a laboratory setting, ensuring safety is paramount, especially when working with organisms that can cause infections or pose health risks. The biosafety cabinet achieves this by utilizing high-efficiency particulate air (HEPA) filters that effectively trap airborne particles, including viruses, bacteria, and fungi, thus providing an aseptic environment.

The other choices do not correctly reflect the primary function of a biosafety cabinet. While it can house some laboratory equipment, it is not primarily meant for storage. Conducting experiments with open-air exposure would contradict the safe practices biosafety cabinets are designed to promote. Similarly, housing sensitive electronic devices is not a relevant function of these cabinets, which are specifically engineered for biological safety rather than electronics.