JCH-120F intelligent medium-flow particle sampler is a new generation of sampler developed by our company according to the characteristics of environmental detection, widely soliciting opinions from experts and users, in order to facilitate the sampling of inspectors and reduce their labor intensity. The sampler uses a membrane weighing method to capture total suspended particulates (TSP) and respirable particulates (PM10) or fine particles (*PM2.5, PM5, PM10) (optional) in the ambient atmosphere, using current computer, G new technologies in the fields of sensors and new materials can be used for routine monitoring by departments such as environmental protection, health, labor, safety supervision, military, scientific research, education, and testing companies.