KN95 Tester Popular KN95 Tester

Description :

　　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.

　　The working principle of the mask particle filtration efficiency detector is:

　　The composition and principle of the mask particle filtration efficiency tester equipment include an oil mist generator, data acquisition software, detection product tooling device, concentration detector, filtered concentration detector, computer data calculation device, pressure regulation device, and tooling pipeline testing device. The photometer in the system is used to detect the concentration of the mask before and after filtration, thus completing the detection of the protective efficiency of the mask particles.

　　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.

　　The mask particle filtration efficiency detector is suitable for conducting tensile tests on various masks and respirators such as medical masks, disposable masks, and respiratory protective respirators. In addition, mechanical property tests such as stretching, tearing, elongation, and peeling can also be conducted on products such as plastics, woven bags, non-woven fabrics, plastic films, products, PVC pipes, paper and cardboard, woven bags, packing belts, tapes, adhesives, etc; Capable of saving experimental data and results, with functions such as curve display, query, and printing.

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• KN95 detector