Hello,
I am installing a new bathroom fan in my second-floor bathroom. The
fan has a light and nightlight that are all capable of being powered
by separate switches. In order to support this, I need to run new wire
up from the switch, into the attic, and over to the fan.

My question is what is the best way to do this, in terms of conduit,
wire type, etc? I figure running some Romex through PVC conduit would
be the best bet, especially in the attic. However, what about in the
wall? Can I have unsecured Romex in there? If I ran PVC the 4 feet
down the wall into the switch box, is it okay to have that unsecured?

Thanks...
Jason