AirDoctor sells a pricey purifier with a filter that it markets as “UltraHEPA,” boasting that the filter traps particles 100 moments smaller than what HEPA filters can capture. Two Coway filters that we ordered in February 2021 had a slight odor, and filters that arrived new in 2022 had no https://meistere726xhq4.ageeksblog.com/profile