Diffusion: Incredibly Good particles measuring below 0.1 micron get bounced all-around randomly and are slowed by their interactions with atmospheric atoms and molecules. They finally drift or get bounced right into a filter fiber, whereupon (another time) they stick in a course of action termed diffusion. ขนาดเล็กกะทัดรัดสามารถวางไว้ได้หลายที่ หลายมุม As well Successfully Submitted (Awaiting Approval)