Kohler K-3901 Homeowner's Manual page 9

Filter
Air Filter Cover
Servicing the Toilet
Servicing the Deodorizer
NOTE: The deodorizer should be replaced every two years or when its performance is decreasing.
Remove the deodorizer cartridge assembly by grasping it and gently pulling it out.
Remove the filter from the housing by pushing it through the back side from the vented side.
Insert the replacement filter into the housing.
Reinstall the deodorizer cartridge assembly.
Servicing the Air Filter
NOTE: This procedure should be performed once a year or more often as needed.
Remove the air filter cover.
Remove the air filter.
Clean the air filter using water.
Dry the air filter.
Reinstall the air filter.
Reinstall the air filter cover.
Servicing the Inlet Screen
NOTE: This procedure should be performed once every six months.
Kohler Co.
Deodorizer
Cartridge
Inlet Screen
Air Filter
9 1212876-5-B