1. The laboratory should have sufficient ventilation and ventilation equipment, as well as exhaust pipes for experimental exhaust gas, to keep the air in the laboratory fresh and clean;
2. The laboratory should be equipped with freezers to store samples and reagents;
3. The laboratory should be equipped with safes to store highly toxic and temperature-sensitive chemicals;
4. Areas with different functions inside the laboratory, especially the places where the analysis of environmental pollutants with high toxicity and "three effects" should be separated and clearly marked to distinguish them;
5. Control the interference of personnel, equipment and analysis items entering different areas, such as using warning signs or access control to avoid crossover or external interference in the laboratory environment.
