How Long Can the Sqair's HEPA Filter Last? How Often Will I Need to Replace the Filter?

Around 6 months. After going through the national standards test and our tests in our Beijing laboratory, the Sqair can be used for 6 months (or 1,400 hours) if it is on for 8 hours daily. The actual longevity will be according to how much time you use it daily, and the pollution situation in your area.