Biosafety levels are categorized based on the type of agents being handled:
BSL-1: For agents not known to cause disease in healthy adults. Basic safety protocols are followed. BSL-2: For agents that pose moderate hazards. Enhanced protective measures are required. BSL-3: For agents that can cause serious or potentially lethal diseases. Controlled access and specialized ventilation systems are necessary. BSL-4: For agents that pose a high risk of life-threatening disease. Maximum containment facilities and stringent safety protocols are utilized.
