เครื่องฟอกอากาศในห้องนอน จําเป็นไหม - AN OVERVIEW

Diffusion: Quite fantastic particles measuring down below 0.1 micron get bounced about randomly and so are slowed by their interactions with atmospheric atoms and molecules. They at some point drift or get bounced into a filter fiber, whereupon (yet again) they stick in a system termed diffusion.two pounds of activated carbon and alumina, which nee