HEPA Stands for “large-effectiveness particulate air.” The filter technology is the result of an industrial will need that became crucial inside the Atomic Age: superior volumes of really cleanse air, essential to the production of microprocessors along with other delicate devices. กลิ่นไม่พึงประสงค์ เช่น ควันบุหรี่ น้ำเน่าริมทาง เป็นต้น As outlined by AHAM Successfully Submitted (Awaiting Approval)