The mask particle filtration efficiency tester is mainly composed of NaCL generator, air flow meter, humidifier, sealing box and corresponding pipeline. It is a testing machine for particle filter permeability and filtration efficiency of masks and meltblown fabrics.

Before each step of this product, the temperature of the sample should be returned to room temperature for at least 4 hours, and then the follow-up test should be carried out. After pretreatment, the sample should be placed in an airtight container and tested within 10 hours. Protection performance against fine particulate matter (PM2.5) The protection effect level is set according to the air quality category in the national air quality standard;

The protection effect level is divided into four levels from low to high: D level, C level, B level, *. The corresponding use environment is as follows: D level is suitable for moderate (PM2.5 concentration ≤ 150μg/m3) and below pollution, Grade C is suitable for severe pollution (PM2.5 concentration ≤250μg/m3) and below, and Grade B is suitable for serious pollution (PM2.5 concentration ≤350μg/m3), *used when PM2.5 concentration reaches 500μg/m3. Wearing a mask reasonably according to the standard requirements can reduce the inhaled PM2.5 concentration to below 75μg/m3, and make the air quality inhaled to reach a good level or above.

What are the performance characteristics of the mask particle filtration efficiency tester?

1. The cold generation aerosol generator is used to generate continuous and stable aerosol particles, and it is convenient to add the solution.

2. Use high-precision sensors to measure the aerosol concentration.

3. The whole process of particle leakage prevention design protects the safety of experimenters.

4. Standard set of aerosol generators: salt particulate aerosol generator and oily particulate aerosol generator.

5. Equipped with aerosol particle electrostatic charge neutralization device;

6. Configure a temperature and humidity sensor to display the ambient temperature and humidity in real time.

7. Equipped with glass rotor flowmeter, vacuum pump and laser dust particle counter.

8. Control system: The computer controls the test process, automatically collects data, and configures the computer and test software.

9. The computer automatically tests the gas concentration and automatically calculates the filtration efficiency; it can save, output, query and print the test data.

Well, the above is the introduction of the relevant content of the mask particle filtration efficiency tester. Friends who have ordered, please leave a message!