How To Change Kitchen Range Hood Grease Filter Charcoal Pad (Open Type):
There are two types of non-ducted range hood filters: locked-type (w/, w/o lens) and open-type.
Filter Type: Locked without Lens
Locked
Filter Type: Locked with Lens
Locked with Lens
Filter Type: Open
Open Type

Step #1 Step #2
1.Remove the screw that connects (a) and (c).
2.Separate (a) and (b) using a flat-head screwdriver, from the left (head) side of (a).
Remove the screw that connects (a) and (c).
1.Flip over (b).
2.Unscrew all 4 screws that connects (b) and (c).
 
Unscrew all 4 screws that connects (b) and (c)

Step #3 Step #4
Remove (c) from (b).
Press both sides of (c) at the same time.
Remove (c) from (b). <br>Press both sides of (c) at the same time.
Replace the charcoal pad, and wash the mesh if needed.
 
Replace the charcoal pad, and wash the mesh if needed.

Open type range hood vs. filter connection details
Open type range hood filter vs. pad/mesh details