AYA AHDG6X/3 Manuel D'utilisation page 45

Installation (Vent inside)
If you do not have an outlet to the outside, exhaust pipe is not
required and the installation is similar to the one show in section
"Installation (Vent outside)".
Activated carbon filter can be used to trap odors.
In order to install the activated carbon filter, the grease filter
should be detached first. Press the lock and pull it downward.
Assemble the carbon filter: The A part of the carbon filter match
the rear bar, the B part match the front.
EN-15