Diffusion: Really Fantastic particles measuring beneath 0.one micron get bounced all around randomly and therefore are slowed by their interactions with atmospheric atoms and molecules. They sooner or later drift or get bounced into a filter fiber, whereupon (yet again) they adhere within a approach called diffusion. มีการรับประกันและบรการหลังการขายที่เชื่อมั่น That 3rd waiting for link from Social Network Posts (30)