There are three types of dust counters on the market:desktop dust particle counters, handheld dust particle counters, portable dust particle counters, and online dust particle counters (sensors). The traditional method is to use handheld or desktop particle counters for regular manual inspections, but in the production process, the environmental conditions are often changing. The entry and exit of raw materials, personnel changes, and product changes will all affect the cleanliness of the factory.

Let's analyze the differences between the three types of particle counters. The first type, "desktop dust counter", is a large flow particle counter with flow rates of 28.3L, 50L, and 100L. It is placed in the laboratory, has a large volume, is not easy to carry, but has high accuracy, fast measurement speed, and is easy to operate. The second type, "handheld (portable) dust counter", has a flow rate of 2.83L (0.1CFM), which can be used in the laboratory or on-site. It is easy to operate and was widely used before the emergence of online particle counter monitoring system technology. The third type, "online dust counter", is small in size, high in accuracy, and can automatically monitor online in real time. The monitoring point is fixed in time and space. The data obtained at the same sampling point are comparable and referenceable, avoiding the various defects of manual monitoring, greatly improving the monitoring quality and level of the purification environment, and is currently the mainstream product for automatic monitoring of international purification systems.