How Much You Need To Expect You'll Pay For A Good air purifier วิธีใช้
Diffusion: Very wonderful particles measuring down below 0.one micron get bounced all over randomly and are slowed by their interactions with atmospheric atoms and molecules. They at some point drift or get bounced right into a filter fiber, whereupon (another time) they stick in the approach known as diffusion.กลิ่นไม่พึงป�