Customized filter material detector

Description :

　　The mask particle filtration efficiency tester is used to test the percentage of bacterial suspended particles filtered out by mask materials at a specified flow rate. The use of dual gas path simultaneous comparative sampling method improves the accuracy of sampling and is suitable for performance testing of bacterial filtration efficiency of medical surgical masks by metrological verification departments, research institutes, medical mask production enterprises, and other related departments. Mainly used for metrological verification departments, research institutes, medical mask production enterprises, etc.

　　Detailed introduction to the configuration of the mask particle filtration efficiency detector:

　　1. Adopting a 7-inch high-definition LCD touch screen, the content is more intuitive and the operation is easier;

　　2. Equipped with a salt aerosol generator, it can produce aerosols of specific particle size and concentration;

　　3. Equipped with multiple series of fixtures, suitable for testing various types of masks;

　　4. Built in high lifespan sensor module, cumulative sampling time;

　　5. Automatically control aerosol generation, calculate capture efficiency, and reduce human intervention;

　　6. Built in high-precision electronic flowmeter and high-performance sampling pump to ensure flow stability;

　　7. Equipped with automatic pneumatic clamping function;

　　8. Equipped with a built-in anti-static device;

　　9. The product complies with GMP user level three permissions;

　　10. Single and grouped statistical analysis of experimental results can be conducted;

　　11. Equipped with ISP online control and upgrade functions, the testing function can be remotely changed according to requirements;

　　12. Optional oil aerosol generator;

　　13. Specialized computer communication software capable of real-time display of experiments, analysis and processing of data, and data storage.

　　As is well known, particulate matter refers to particles with an aerodynamic equivalent diameter of less than or equal to 2.5 μ m in the ambient air, also known as fine particulate matter, commonly referred to as PM2.5. And filtration efficiency refers to the ability of a mask body to filter out particulate matter under specified conditions, indicated as a percentage.

　　The detection conditions for the mask particle filtration efficiency tester are: the testing environment temperature is (25 ± 5) C, and the relative humidity is (30 ± 10)%. Testing process:

　　1. Test flow rate (85 ± 4) L/min (if multiple filter elements are used, the flow rate should be evenly divided. If dual filter elements are used, the detection flow rate of each filter element should be (42.5 ± 2) L/mi. If multiple filter elements may be used separately, they should be tested according to the detection conditions of a single filter element). 2. Adjust the filtering efficiency detection system to the detection state and adjust its relevant parameters;

　　2. Use appropriate fixtures to airtightly connect the mouth military body or filter element to the detection device;

　　3. After the testing begins, record the filtration efficiency of the sample with a sampling frequency of 1 time/min. The testing should continue until the particulate matter on the mask is loaded to 30mg; Data processing: Use the small value of the filtration efficiency obtained during the entire testing process as the filtration efficiency of the batch of mask sample materials.

AfterSalesService :

• Filter material detector