HEPA stands for “significant-effectiveness particulate air.” The filter technological innovation is the results of an industrial need to have that became crucial within the Atomic Age: high volumes of pretty clean up air, critical for the production of microprocessors and various delicate devices. ตัวเครื่องอาจค่อนข้างใหญ่ไปสำหรับผู้ใช้บางท่าน CADR (thoroughly clean air supply ranking) https://mannatureairpurifier.com/