Беглое гугление дюже не рекомендует пластик. Говорят, оцинковка или нерж. Ну и гофра это самое не то что надо, конечно.
Can I use PVC pipe to vent a range hood?

Can you use PVC duct for a cooker hood? We don't recommend using PVC duct for your range hood. It's not nearly as durable as aluminum or stainless steel ductwork. You should also avoid flex duct for your range hood; it won't last very long!