**Requirements for Rational Laboratory Furniture Layout** To build a fully functional laboratory, professional design by technical experts is essential. The layout should be human-centered, standardized, and regulated to achieve optimal usability. ### I. Rational Design of Laboratory Water System 1. Use DG15PP, PVC, or Kaitai pipes for the water supply system, with a water pressure of at least 2.5 MPa. For drainage, use DG50 PP, PVC, or ceramic pipes with a minimum slope of 5 degrees, and install U-shaped traps

  I. Fume Hood Usage Guidelines The fume hood is an essential component of laboratory equipment. In a scientific lab environment, effective ventilation is crucial for maintaining a clean environment, ensuring the scientific validity and reliability of experiments, and maintaining safety throughout the process. Therefore, the following points should be observed when using a fume hood: Indoor air temperature should be between -5°C and +40°C, with a 24-hour average not exceeding +25°C. Even when the fume hood is not in