Samsung AM JNVD Series User Manual page 27

Reassembling the Air filter
1. Put the filter on the main body and insert the hooks which are
in the top of the Air filter into the the main body. 
2. There's one hook in both side of the filter, press the surface of
the Air filter softly and get the hooks into the main body. 
3. Press the bottom of the filter lightly to securely fix the main
body. 
English-27
Air filter