Zojirushi PA-FLC07 Replacement Filter Set for PA-LC10 and PA-LAH08K Please regularly check the surface of the HEPA type filter. If its color becomes similar to the sample color label affixed inside the main body of the unit, it is time to replace it. Easy to replace Please clean the Main Body and the Front Panel when changing the filters. Replacement Reminder Label included to fill in date changed and affix to product