Our authorities agree that filtration is essential when choosing an air purifier, and spotlight two important variables in obtaining productive filtration: HEPA filters and an suitable CADR. ตัวเครื่องอาจค่อนข้างใหญ่ไปสำหรับผู้ใช้บางท่าน According to AHAM , your air purifier must have a CADR ranking akin to about two-thirds of the area of your Place https://www.mannature.com