防护服的阻隔性能：一旦确定了暴露的危害和风险，就可以根据当前对防护服材料如何保护血液和体液中的微生物的科学认识来选择防护服。微生物在防护服材料中取决于以下几个因素：
    1.织物的物理和化学特性：包括厚度、孔径和拒水性等因素
    2.微生物的形状、大小和其他特征：包括形态、运动性和对极端环境的适应等因素
    3.载体特性：包括表面张力、体积和粘度等因素
    4.外部因素：包括物理、化学和热应力等因素
    Barrier performance of protective clothing: once the hazards and risks of exposure are determined, protective clothing can be selected according to the current scientific understanding of how protective clothing materials protect microorganisms in blood and body fluids. Microorganisms in protective clothing materials depend on the following factors:
    1. Physical and chemical properties of fabrics: including thickness, pore size and water repellency
    2. Shape, size and other characteristics of microorganisms: including morphology, motility and adaptation to extreme environments
    3. Carrier characteristics: including surface tension, volume and viscosity
    4. External factors: including physical, chemical and thermal stress