Aw fuck! I have a WINDOW A/C unit... How do I PREVENT SMELL going OUT???

Fuck! I didn't think of this before. I got a 10k btu window a/c.

How do I prevent it from shooting hot smelly air outside? Ozone Generator in front of it? I already have a Carbon Filter in there.

Close the window.

Ok I don't have a window mount but the portable actualy cut the smell down only sugestion is get a filter for the room

You could try a combo like this...
Carbon filter > Fan > duct boot nearly the size of the front of the intake for the window AC unit and have it exhaust right into the front of it. Then the exhaust from the AC to outside would be nearly all filtered air.

Turn it off. The problem is not the exhaust air but rather the condensation water which picks up all the smelly particles and soon begins to reek of weed and then collects in that nasty drip pan that no one ever cleans. It is one of the ways cops become aware of and bust small grow ops. You should use a portable indoor unit if you need cooling in the grow room and filter any exhaust air that leaves the room.