NuTone 8210 Vertical Discharge and Round Duct Ceiling Fan
Perfect solution for your outside ugly fan blades
Discuses how to choose a vent hood
Maybe use different fan blades, but what an easy DIY.
Installing a Bath Vent Fan - How to Install a Fan or Heater - Home & Residential Wiring.
Stylish And Eye-Catching Kitchen Hoods
Home Exhaust Fan Kitchen, Bathroom Ceiling Ventilation Fan approved Noise, with light Copper Wire Motor