Wouldn’t that just push the cold air into the room when it pops out.

Also, is that a big bottle of maple syrup the fridge?

The video down thread shows, the internal food-supports are all wire meshes with big gaps. The cold air is not squirted up and out like a syringe, it's more like the food is kept in a birdcage that's lowered and raised out of a pool of cold air.