Looking for repacement globe for bath room exaust ...

CONSIDER LOCAL TRIFT OR RESTORE LOCATIONS.
CHANGE BULB TO LED FOR BRIGHTNESS / COLOUR. MEASURE DEPTH TO ACCEPT NEW BULB AND WIDTH OF OPENING FOR REPLACEMENT GLOBE'S OPENING.

Lowes and Home Depot sometime carry the globes on the shelf in my area. Not sure if available online through the internet or by phone.

https://www.lowes.com/b/hunter-fans.html

Text and phone contact information for Lowes.

https://www.lowes.com/l/contact-us.html

According to Broan's site - the model you specified has no light bulb - check specifications - you can search the site for the proper model and download the instructions.
http://www.broan.com/products/product/4108f1af-c993-4327-982f-1174f091fd6f

I appologize in advance for not having absolute, 100% certainty if this will work with your particular model of fan, but it appears that most fans of that style have a threaded globe glass covering. The difficulty most people encounter, is that if the globe is even mildly warm from the fan motor running, it will be near-impossible to grip, much less to turn.
In all related cases I had read about, the solution was to allow about 12 to 24 hours of power to the fan being completely off to allow it to cool, then try turning the globe to unscrew it. Most suggest "clockwise" but I have no way of knowing if they mean clockwise from the perspective of looking up at the globe, or clockwise relative to the fixture itself.
Some also suggest that rubber gloves to improve grip or friction may also help to turn the globe.

Try home depot or lowes

The globe should be screwed in place by about a quarter turn

Call this number: 1800-330-3267. This is the contact for Hampton Bay Fans... Although they did not have the glass I was looking for, this info. it may help someone. My 48-TP has been discontinued! Great!!!

I am thinking of buying this fan, but do not want to use the light. Are you still looking for a light globe?

I have a Black and Decker bath fan and light unit. The fan and light will both work when plugged into one female plug, but not when plugged into the other.

The globe can be directly ordered from manufacturer- King of Fans. I got number from Home Depot, because it was backordered so they gave me the direct number. 1-800-330-3267 UPC #082392400934