As pointed out within our information to top-rated silent air purifiers, we propose cross-checking claimed decibel amounts with consumer teams like Peaceful Mark, a British isles-centered impartial international certification application that identifies the quietest merchandise. จัดส่งฟรี! เมื่อสั่งซื้อเครื่องกรองอากาศทุกรุ่น Based on AHAM , your air purifier ought to have a CADR score https://www.mannature.com