Clean the lint filters in the proper way referring to the following instructions. Failure to do so, the lint that is accumulated on the heat exchanger may not be cleaned properly.
Unload all of the laundries from the appliance before pull out the lint filters.
Put the lint filters back in place after cleaning. If the lint filters are not in the appliance, you can not operate the appliance.
when cleaning the filters, the lint should be thrown in the trash and not washed through the drain in order to avoid spreading microplastics in the used water system.

Inner Filter
Always clean the inner filter before and after use.
Outer Filter
Clean the outer filter after drying 10 times or when the lint is accumulated into the outer filter.
A chime will sound and the Filter Cleaning indicator will blink when the lint has accumulated.
Pull out the inner filter from the outer filter and then open the inner filter.
Open the filter by unfolding it in the direction of the arrows.

Clean large cluster of lint first, then clean the residual lint by hand or with a soft tissue.
Dry the filter completely if the filter is moist. Failure to do so, odour may occur in the appliance.
Dispose of the used tissue in the trash.
Close the filter completely by pushing down its center.
Ensure the left and right side of the inner filter is closed properly.
Insert the inner filter into the outer filter.
Remove the dust or lint around the filter inlet.

When the lint drops into the filter inlet, it may cause less efficient drying performance and increase of drying time.
Pull out the outer filter.
Remove the inner filter.
Grab the top edge of the outer filter and spread open.
Clean large cluster of lint first, then clean the residual lint by hand or with a soft tissue.
Dry the filter completely if the filter is moist. Failure to do so, odour may occur in the appliance.
Dispose of the used tissue in the trash.
Close them, and reinsert the both lint filters.

Do not load or remove any clothes when the lint filter is not in place. The clothes can drop into the filter inlet and it may cause the appliance to malfunction.