And Two, it’s more sensitive to filter everyday living than Another purifiers: We’ve measured reasonably major drop-offs when testing calendar year-aged filters. Blueair recommends replacing the filter “each 6 months or so,” and it’s best to keep on with that schedule. ฝุ่นละออง, เชื้อรา, ละอองเกสร และแบคทีเรีย We analyzed the Coway Airmega Successfully Submitted (Awaiting Approval)