Diffusion: Really Fantastic particles measuring below 0.one micron get bounced close to randomly and therefore are slowed by their interactions with atmospheric atoms and molecules. They ultimately drift or get bounced right into a filter fiber, whereupon (over again) they stick in a very approach named diffusion. กลิ่นไม่พึงประสงค์ เช่น ควันบุหรี่ waiting for link from Social Network Posts (26)