ขึ้นอยู่กับประเภทของไส้กรองและการใช้งาน โดยปกติ Matching your air purifier to the space sq. footage and kind is essential for it to work at its best. A general general guideline is to choose an air purifier that has a CADR that's at least two-thirds the size of the space. Check out the CADR (thoroughly https://mannatureairpurifier.com/