Device for collecting particles or microorganisms

A system for collecting particles and/or microorganisms suspended in a gaseous medium comprising a suctioning device and a chamber for centrifugating and collecting said particles and/or microorganisms:

• the centrifugation chamber comprising at least one guiding edge as well as an air inlet and an air outlet;
• the device comprising:
• an assembly including an air suctioning conduit, and
• a member including a guiding and receiving system for guiding and receiving the at least one guiding edge of the centrifugation chamber, the member being mobile relative to the air suctioning conduit between a first position wherein the at least one guiding edge can be guided and received in the guiding and receiving system and a second position for collecting particles, wherein the air outlet of the centrifugation chamber is applied on an end of the air suctioning conduit;
• wherein the system further comprises a ring mounted around the air suctioning conduit and blocked in translation on the air suctioning conduit, the ring being coupled in rotation to the member such that a rotational movement of the ring induces a translation movement of the member between the first receiving position and the second collecting position.