Some of the new standup portable units are unbelievable. They are quiet, and use very little power. The can plug into any 120 V outlet. For the condensing fan exhaust, run a flex duct to a cracked window, or use the exhaust fan over the stove or bathroom exhaust fan. The units run about 450-600 dollars and do a great job. The condensate is caught in a container, and will shut the machine off when full. Just empty and start it up again. This will keep Mom cool. Good luck!!