Angle of kitchen exhaust?

Can a kitchen range exhaust have two 90 degree turns? It’s a gas stove. It’s the one in the background.


I don’t think I’ve ever read anything in the code that prohibits it. Hood manufacturer might, however. May want to note it and refer the client do some research (unless you want to do some research).

Since they are not required res and it does not effect safety you can look up manufacturer,as they all have different blowers.

Thanks guys.