How to remove paint and refinish metal fan housing front plate
If you can remove the entire face plate use regular paint stripper. When you get it down to bare metal you can polish the surface with scotchbrite pads or steelwool. You might find something to attach to your drill to make this part easier. Once you get the finish you are looking for cover it with clear enamal to protect it. If you can't get an acceptable finish for a clear coat look at some of the metal finish spray paints like hammered bronze or antique copper etc. I would avoid the spray chrome as I haven't found one yet that yields decent results.