Certified Safety Professional Practice Exam 2026 - Free Practice Questions and Study Guide

The minimum inflow velocity required for Class 2, Type B3 biosafety cabinets is 100 feet per minute (fpm). This standard is crucial for ensuring proper ventilation within the cabinet, which is designed to protect both the user and the environment from potential exposure to harmful biological agents.

The inflow velocity is vital for maintaining a negative pressure inside the cabinet, allowing air to be drawn in through the front opening. This creates a barrier that contains pathogens and prevents them from escaping into the surrounding room. A minimum velocity of 100 fpm is established to ensure adequate airflow, allowing for effective containment while providing the necessary comfort and access for the user during operations.

Biosafety cabinet types and their specifications are determined based on performance testing and safety standards established by regulatory bodies. Understanding these requirements is essential for professionals in the field to ensure that biosafety cabinets are functioning correctly and providing the level of protection intended.