HEPA Stands for “large-effectiveness particulate air.” The filter technology is the results of an industrial need to have that grew to become essential inside the Atomic Age: large volumes of quite cleanse air, critical to the manufacture of microprocessors and various sensitive instruments. ขนาดเล็กกะทัดรัดสามารถวางไว้ได้หลายที่ หลายมุม The shortage of oversight is Successfully Submitted (Awaiting Approval)