temperature

It probably does, Boy, but not significantly

I suspect waste heat of blower motor would far exceed any effect of compression

The room temperature does increase when you turn on a fan (very slightly). Did you believe otherwise?

Boy's q does seem to suggest he might be mistaken in the effect of pressure upon temp

In fact I seem to recall that once compressed the air does indeed return to its former lower temp so I'm wondering if this is what motivates his uncertainty

It's a fairly straightforward phenomenon. If you compress a gas then the heat energy that was contained in the previous volume is now contained in a smaller volume thusly raising the temp of the smaller volume. If you now allow the smaller volume to cool and then allow it to expand it will be cooler than the previous small volume was.

Air conditioners and heat pumps use this. Its more efficient to use a refergerant gas (easily liquified) to do this.