Amazon.com: FAXIOAWA Louvered Vent Hood, Wall Air Outlet, Cap Vent Round, 8in, 10in, Portable, Easy Installation, Effort and Time, Can Be Used for Installation in Homes, Offices, Conference Rooms (Size : 110mm) :
ABS Ceiling Air Vent Insect-Proof and Block-Proof Circular Wall Vents Hood Plastic Air Outlet - China Plastic Air Outlet, Exhaust Air Outlet | Made-in-China.com