Juchuang FKC-I type planktonic air dust and bacteria sampler is a high-efficiency porous inhalation dust and bacteria sampler. It is designed according to the particle impact principle and isokinetic sampling theory. The sampling is direct, and the wind speed at the collection port is basically the same as the wind speed in the clean room, which can more accurately reflect the microbial concentration in the clean room. During sampling, the air with dust bacteria passes through the micropores at a high speed and is impacted on the surface of the agar in the contacting plate; these living microorganisms undergo a dynamic rehydration process during the cultivation process and grow at a high speed, so that results can be obtained faster.