Biosafety cabinet in microbiological laboratory

General principles and rules of work with biosafety cabinet (level 2). Simple and useful explanation for beginning microbiologists.
Such cabinets (chambers) provide on the one hand protection of the operator against potential pathogens, and on the other hand provide protection of the material in the chamber from external contamination. Practically sterile conditions are maintained inside the chamber.
This video tells about the basic principles of biosafety cabinet, and their usage in microbiological diagnostic laboratories.