Test items: Measure the moisture permeability of various fabrics, including moisture-permeable coated fabrics. Technical Description: It is mainly used to determine the moisture permeability of various fabrics, including moisture-permeable coated fabrics. Structural principle: Computer control is used to create a constant temperature and humidity test environment. In the constant temperature and humidity test environment, 6 moisture-permeable cups are placed, and the sample is placed in the cup and sealed with a rubber gasket. For the water seal, the moisture-permeable cup of the fabric sample is placed in a sealed environment with a specified temperature and humidity, and the moisture permeability is calculated according to the change in the mass of the moisture-permeable cup (including the sample and the moisture absorbent or water) within a certain period of time. Technical Index: 1. Temperature control range: -40℃～150℃; resolution; 0.1℃ 2. Humidity control range: 50%RH～95%RH±5% 3. Speed ​​range: 2mm～60mm/min 4. Control accuracy: temperature≤0.1℃; humidity≤±1%RH 5. Circulating wind speed: 0.02～0.5m/s, 0.3～0.5m/s 6. Time control: 1～9999h 7. Permeable area: 2827㎜2 (diameter is 60㎜--national standard) 8. Number of breathable cups: 6 national standard; 9. Drying box control temperature: room temperature～199℃ 10. Test time: 1～999h 11. Drying box working room size: 490×400×215mm Testing Base: Technical requirements for GB19082-2009 medical protective clothing YY-T1498-2016 Selection Guide for Medical Protective Clothing GB/T12704.1 Method for measuring moisture permeability of fabrics, moisture permeable cup method