Diffusion: Very fine particles measuring underneath 0.one micron get bounced 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 (over again) they stick in a very approach called diffusion. ฝุ่นละออง, เชื้อรา, ละอองเกสร https://mannatureairpurifier.com/