As observed within our manual to top rated-rated quiet air purifiers, we advocate cross-checking claimed decibel amounts with consumer teams like Peaceful Mark, a UK-based impartial global certification program that identifies the quietest products and solutions. มีขนาดกะทัดรัด พกพาไปใช้งานได้อย่างสะดวกในทุกที่ As outlined by AHAM , your air purifier should have a CADR https://www.mannature.com