I’m in the process of doing this right now. I use my blackstone griddle in the garage year round and also fry fish every few weeks. In my last garage the ceiling fans would get pretty gross/sticky and have to be cleaned once a year not to mention anything that wasn’t in a cabinet. So, i’m in the process of installing one on a wall to park whatever I’m cooking with on wheels underneath when I need it and also to exhaust the occasional cig when friends stop by and it’s 20 below outside. Not sure it’s the best option but it’s what I’m going to try.
Well if we are going to drop some coin on this the only way to go is a commercial grade grill top hood, vent, and fan.