A NOISE QUESTION

I HAVE A PROBLEM WITH NOISE AND WOULD LIKE TO KNOW WHAT OPTIONS THERE ARE. I NEED TO COOL A LARGE ROOM.

** WHAT IS THE QUIETEST WINDOW UNIT?

** IS THERE A STAND-ALONE UNIT THAT CAN SIT OUTSIDE AND HAVE THE COOLED AIR DIRECTED THRU A DUCT?

** ANY OTHER SUGGESTIONS?
THANKS,
MIDWESTBILL