Diffusion: Incredibly High-quality particles measuring under 0.one micron get bounced all over randomly and therefore are slowed by their interactions with atmospheric atoms and molecules. They finally drift or get bounced right into a filter fiber, whereupon (over again) they stick in the approach referred to as diffusion. ตัวเครื่องอาจค่อนข้างใหญ่ไปสำหรับผู้ใช้บางท่าน มลพิษในอากาศนั... waiting for link from Social Network Posts (29)