ค่าไฟฟ้า : เครื่องประหยัดพลังงานจะช่วยลดค่าใช้จ่ายได้ในระยะยาว Matching Your air purifier on your space sq. footage and type is essential for it to work at its best. A basic rule of thumb is to settle on an air purifier with a CADR that is certainly at least two-thirds the scale on the home. Evidence waiting for link from Social Network Posts (32)