Diffusion: Quite Wonderful particles measuring under 0.one micron get bounced close to randomly and so are slowed by their interactions with atmospheric atoms and molecules. They ultimately drift or get bounced into a filter fiber, whereupon (once more) they stick in the system known as diffusion. ตัวเครื่องอาจค่อนข้างใหญ่ไปสำหรับผู้ใช้บางท่าน Besides a HEPA waiting for link from Social Network Posts (48)