Diffusion: Extremely Good particles measuring under 0.1 micron get bounced around randomly and they are slowed by their interactions with atmospheric atoms and molecules. They ultimately drift or get bounced right into a filter fiber, whereupon (another time) they stick inside of a approach known as diffusion. มีขนาดกะทัดรัด พกพาไปใช้งานได้อย่างสะดวกในทุกที่ Together waiting for link from Social Network Posts (16)