The oxygen concentrator is delivered with twelve spare filters. These filters must be regularly cleaned and periodically replaced in order to maintain optimal working conditions.
 

To clean the filter:

1. Locate the filter on the base of the oxygen concentrator.
2. Remove the filter cap, then remove the filter.
   

   

3. Spray the filter with compressed air to remove all dust/debris.
4. Insert the clean filter back into the concentrator and cover with the filter cap.