Diffusion: Pretty Great particles measuring underneath 0.one micron get bounced close to randomly and are slowed by their interactions with atmospheric atoms and molecules. They eventually drift or get bounced right into a filter fiber, whereupon (once more) they stick in a very approach referred to as diffusion. ตัวเครื่องอาจค่อนข้างใหญ่ไปสำหรับผู้ใช้บางท่าน To Successfully Submitted (Awaiting Approval)