Mask blockage testing equipment and testing method thereof

Abstract

The invention relates to the field of mask testing, and concretely relates to mask blockage testing equipment. A testing assembly, a dust input assembly, a dust output assembly and a breathing simulation assembly are arranged in a machine body, the testing assembly comprises a test box, a head mold and a pressure sensor, and the two sides of the test box are connected with the dust input assembly and the dust output assembly respectively; a mask is worn on a head mold in the test box, a breathing area is formed between the mask and the head mold, the breathing simulation assembly comprises a breathing machine, a first connecting tube, a second connecting tube, a third connecting tube and a temperature and humidity control system, the breathing machine is communicated with the breathing area through the first connecting tube, and the breathing machine is connected with the temperature and humidity control system through the second connecting tube; and the temperature and humidity control system is communicated with the breathing area through the third connecting tube, a collecting tube on the pressure sensor extends into the breathing area after passing through the head mold, a probe is arranged in the test box, a dust tester connected with the probe is arranged outside the test box, and the dust output assembly comprises an exhaust fan and a flow meter. According to the invention, the blocking test can be better carried out on the mask.

Description

technical field [0001] The invention relates to the technical field of mask performance testing, in particular to mask blocking testing equipment and a testing method thereof. Background technique [0002] At present, various face masks have appeared on the market according to different actual needs. Among them, the filter-type anti-particulate matter mask can provide the wearer's face with a sufficient seal against the surrounding environment, and is mainly used to prevent solid and liquid aerosols and air from entering The filter-type anti-particulate mask is directly connected to the nose and mouth area of ​​the mask, and the exhaled air flows directly to the surrounding atmosphere through the filter material of the mask. [0003] After wearing a filter-type anti-particulate mask for a period of time in a dusty environment, the dust will partially block the mask and increase the breathing resistance of the mask, which affects the performance of the mask product. Regardin...

AI Technical Summary

Problems solved by technology

[0003] After wearing a filter-type anti-particulate mask for a period of time in a dusty environment, the dust will partially block the mask and increase the breathing resistance of the mask, which affects the performance of the mask product. The blockage of particle masks in dusty environment, the mask blockage test equipment on the existing market is often unreasonable due to the unreasonable structure design, resulting in unsatisfactory blockage test results, which cannot well meet the actual needs

Images