Diffusion: Quite Good particles measuring beneath 0.1 micron get bounced all over randomly and therefore are slowed by their interactions with atmospheric atoms and molecules. They finally drift or get bounced right into a filter fiber, whereupon (all over again) they adhere in the process known as diffusion. ตัวเครื่องอาจค่อนข้างใหญ่ไปสำหรับผู้ใช้บางท่าน ดูรายละเอียดเพิ่มเติม/ Successfully Submitted (Awaiting Approval)