Definition: The biosafety level provides various types of biological safety measures to separate dangerous biological microorganisms in laboratories. Biosafety levels range from low to high, ranging from biosafety level 1 (BSL - 1) to biosafety level 4 (BSL - 4). Introduction and background Biosafety performs a different set of controlled principles, activities, advanced technologies and organizational practices to prevent exposure to unintended unintended risk factors.
Biosafety Level 4 (BSL - 4) BSL - 4 Practice, safety equipment and facilities designed and constructed for hazardous materials and foreign substances. Treatment methods Medications with close or equivalent antigenic relationships with biosafety level 4 drugs should also be treated at this level. Once enough data is available, you can continue to use these agents or continue to use them at a lower level. Biosafety Level 4 manipulates viruses such as Marburg or Congo Crimean bleeding fever.
Research, study and testing of biosafety class 4 drugs or viruses should be included in the Class III biosafety cabinet. The microorganisms are kept in a special room, specially designed to keep these microorganisms from diffusing into the environment and maintain negative pressure. If the protective barrier is broken or punctured, negative air pressure is required to flow air into the room.
I will think about security. Any design engineer will definitely discuss the laboratory safety requirements for the new space. There are many important functions: biosafety cabinet, fire protection and inspection system, emergency shower and eye wash, easy access, clear marking and adequate ventilation. The ventilation system should control the temperature and keep the space comfortable. In addition, when using hazardous materials, the ventilation system should include features such as chemical fume hood to suppress possible exposures and capture pollutants in the laboratory air.