Biological Safety Cabinets
Microbiological safety cabinets are specially designed in order to operate securely with contaminated and risky processes and materials that take place in labs. Bio safety cabinets are used to prevent environmental harm as a result of aerosols released through the hazardous practices carried out in the laboratory.
A biological safety cabinet (BSC) is a ventilated cubicle that uses HEPA (High-Efficiency Particulate Air) to filter out all the pathogenic biological agents and microorganisms from the workspace environment and disseminates unpolluted air to clean up the environment.
Biosafety cabinets are commonly used in different laboratories, including medical and R&D laboratories. Based on the characteristics of each, biosafety cabinets are divided into three main classes: I, II, and III.
Purposes of biohazard safety cabinets
A biosafety cabinet has three basic uses; personnel, product, and environmental. Personnel protection is when the operator is secured from any hazardous accidents while through unsafe pathogens released from within the BSC. The person operating with a biological safety hood is protected through unidirectional air downflow and an air curtain in the work opening of the biosafety cabinets.
Product protection occurs when the processes, techniques, or experiments carried out within the laboratory are prevented from hazardous toxins and impurities. Environmental protection is the most significant purpose of a biosafety cabinet because it involves the protection of the entire workplace in which the person operates, and the processes take place. Cleaning up the workplace environment is a pre-requisite to perform the other two protection functions.