Diffusion: Quite High-quality 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 right into a filter fiber, whereupon (another time) they adhere in a very system called diffusion. มีการรับประกันและบรการหลังการขายที่เชื่อมั่น In line Successfully Submitted (Awaiting Approval)