Diffusion: Quite Wonderful particles measuring down below 0.one micron get bounced about randomly and therefore are slowed by their interactions with atmospheric atoms and molecules. They at some point drift or get bounced into a filter fiber, whereupon (another time) they stick in a system referred to as diffusion. ตัวเครื่องอาจค่อนข้างใหญ่ไปสำหรับผู้ใช้บางท่าน waiting for link from Social Network Posts (13)