u/Due-Web-4487

Lmk so I can send back asap

Hi, was wondering if anyone could help me with this. I live in my parents garage and I use a portable AC with a window kit at the bottom of the garage. But it leaves the garage open for possible rodents, and other insects to get inside. How would I be able to cover up the part that’s open so I can feel more comfortable?
Also want to add there’s no window in the garage so it has to be placed on the ground, which leaves the garage open quite a bit