1. Introduction Particulate filtration efficiency test equipment is used for testing the filtration efficiency of particulate matter in daily protective masks, self-priming filter respirator for respiratory protection products, and to determine the obstruction performance of ordinary fabrics and melt-blown fabrics for constant airflow, it is designed according to GB32610-2016 “Technical Specification of Daily Protective Mask” and GB2626-2019 “Respiratory Protective Equipment-Non Powered Air Purifying Particle Respirator”, the equipment is used in medical device inspection center, safety protection inspection center, labor protection inspection center, drug inspection center, disease prevention and control center, textile testing center, hospitals, masks and melt-blown fabric manufacturers. 2. Features ● Control system: The computer controls the test process, automatically collects data, and configures a dedicated computer and test software...