As Famous in our guide to leading-rated peaceful air purifiers, we suggest cross-checking claimed decibel stages with customer groups like Tranquil Mark, a United kingdom-based mostly unbiased global certification application that identifies the quietest products and solutions. ฝุ่นละออง, เชื้อรา, ละอองเกสร และแบคทีเรีย Corbat endorses locating air purifiers tested and Qualified by Successfully Submitted (Awaiting Approval)