There is actually a thread here on this topic that might be found by searching. For the 10 baffle assemblies in my Pro Island hood, I do the following:

Assuming each baffle assembly is not "glued" to its neighbors or to the grease tray due to aged grease, grab each of the two red buttons on one assembly and slide the assembly upward and toward the center away from the grease tray (thereby compressing a leaf spring) and then rotate the bottom out. Remove the assembly out of its position by pulling down. Use the center baffle assembly to start when there are only three to a side. If stuck to the others due to grease, try separating the grease tray by pushing up on the baffle and down on the grease tray, then use some side force to separate the baffles from each other. There should be enough side-to-side play to do this. Note that my hood was fabricated for Wolf by Independent ca. 2008 and there may be details that have changed.

Installation is the reverse of removal. Be sure that the baffle assembly leaf spring is toward the upper direction. The assembly should sit snugly in the grease tray when installed, held in position by the tension on the leaf spring at the upper end.

If a glass cooktop is involved, protect against accidental drops.