AirDoctor 5500 Filter Replacement is a reasonably basic procedure that doesn’t involve much effort. It is virtually the same for the AirDoctor 5000, AD5500, and AD5000 versions. New filters provide adequate airflow through a purifier and ensure proper operation of the purifying equipment in terms of dust and odor removal. This is the initial step for folks who want to know how to change AirDoctor filters. First of all, you have to switch off the purifier and disconnect it fro