The prevention of harmful effects and incidents on a large scale due to any biological research is called biosafety.
The inclusion of standards and guidelines to be followed in the laboratory.
The main aim of biosafety is to periodically have a check on chemicals, biological agents, and radiation.
Biological Safety Levels (BSL) are a series of protections relegated to autoclave-related activities that take place in particular biological labs.
There are four biosafety levels named as: Biosafety level 1, Biosafety level 2, Biosafety level 3 and Biosafety level 4.
Biosafety Level 1: Biosafety level 1 applies to laboratory settings in which personnel work with low-risk microbes that pose little to no threat of infection in healthy adults.
Biosafety Level 2: Biosafety level 2 covers laboratories that work with agents associated with human diseases (i.e. pathogenic or infections organisms) that pose a moderate health hazard.
Biosafety level 3: Biosafety level 3 is applicable to laboratories that are involved in the research on microbial agents transmitted through inhalation and causing serious diseases.
Biosafety Level 4: Biosafety level 4 lab consists of work with highly dangerous and exotic microbes.