PFE detector special price mask particle filtration efficiency detector

Description :

　　The mask particulate matter filtration efficiency detector is a device used to detect the filtration performance, protective filtration efficiency, and filtration effect of protective masks. Currently, masks are mainly divided into air filtration masks and air supply masks; The working principle and function of a mask are that it is a type of hygiene product that is generally worn on the mouth and nose to filter the air entering the mouth and nose, in order to block harmful gases, odors, and droplets from entering and exiting the wearer's mouth and nose. It is made of gauze or paper, etc. By comparing the working principle, it is clear that the protective filtration tester is a testing item used to test the protective filtration performance of masks.

　　The mask particle filtration efficiency tester is a detection device used to test the filtration performance, protective filtration efficiency, and filtration effect of protective masks. Currently, masks are mainly divided into air filtration masks and air supply masks. This testing instrument is suitable for medical device inspection centers, safety protection inspection centers, labor protection inspection centers, drug inspection centers, disease prevention and control centers, textile testing centers, mask and respirator production enterprises, etc.

　　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 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.

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