Diffusion: Quite High-quality particles measuring under 0.1 micron get bounced all around randomly and therefore are slowed by their interactions with atmospheric atoms and molecules. They finally drift or get bounced into a filter fiber, whereupon (once more) they adhere inside a course of action referred to as diffusion. จัดส่งฟรี! https://www.mannature.com/products/detail/airpurifier