These three elements refer to personnel safety, laboratory safety and biological safety management.

The personnel working in the biological laboratory must undergo professional training and assessment, have certain biosafety knowledge and skills, abide by the laboratory operating procedures and biosafety system, and wear personal protective equipment correctly to ensure their own safety.

Biological laboratory must meet certain safety standards, including protective facilities, ventilation system, waste treatment system, etc. To ensure the safety of the internal environment and experimental materials in the biological laboratory.