Diffusion: Extremely Good particles measuring beneath 0.1 micron get bounced all-around randomly and so are slowed by their interactions with atmospheric atoms and molecules. They eventually drift or get bounced into a filter fiber, whereupon (yet again) they stick in the course of action known as diffusion. นอกจากนี้ ณ ปัจจุบัน Successfully Submitted (Awaiting Approval)