Synchronous real-time testing method for mask protection effect and load respiratory resistance

Abstract

The invention relates to the technical field of mask detection, and specifically relates a synchronous real-time testing method for mask protection effect and load respiratory resistance. The mask protection effect and load respiratory resistance under different particulate conditions can be detected. Through the technical scheme, the method comprises the following steps: (1) wearing a mask on a head die inside a testing cabin through manpower; (2) using a particulate generating module to generate salt particulates or oil particulates with different particulate size distributions and concentrations to be fed inside the testing cabin, and simulating a polluted air environment; (3) using a respiratory simulator, so that human body respiration is stimulated by the head die; (4) under the state of stimulated respiration, collecting the data of particulate concentrations and load respiratory resistances inside and outside the mask by a data receiving and processing module; and (5) processing collected data by the data receiving and processing module, contrasting with a standard value, if the standard value is exceeded, regarding the mask to be unqualified, and stopping a test; and if the standard value is not exceeded, regarding the mask to be qualified, and generating the performance curve diagram of the mask by the data receiving and processing module.

Description

technical field [0001] The invention relates to the technical field of mask detection, in particular to a method for synchronously testing the protective effect of a mask and the respiratory resistance of a load in real time. Background technique [0002] Every autumn and winter, our country enters a period of frequent smog, among which the most harmful to the human body is the particulate pollutant (Particulate Matter, PM2.5) with an aerodynamic diameter of less than 2.5 μm, which will directly enter the lungs and bronchi after being inhaled. Or blood circulation system, acute respiratory disease, cerebrovascular disease, myocardial ischemia and lung cancer and other diseases are all related to PM2.5 particles. Anti-smog masks have almost become the standard equipment for citizens to go out, but in contrast, the quality of mask products is uneven, some products are falsely advertised, and consumers do not know how to choose a suitable mask. [0003] The protective effect a...

AI Technical Summary

Problems solved by technology

This method mainly has the following problems: the use of real people to test will endanger the health of the testers; testers from different institutions, and different batches of testers from the same institution, may have deviations in the leak rate test results, which may easily lead to unqualified testing by mask companies. Controversy over the results

At present, there is no simultaneous real-time test method for the protective effect of masks and the respiratory resistance under load under different particle states in China.

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