Honeywell Portable 9000 BTU (14000 BTU ASHRAE) 115V Air Conditioner w Heat Pump, Cools & Heats Rooms Up to 700 Sq. ft.,MN4HFS9

This is a great cooling unit. It runs very quiet and appears to be very effective.

I live in townhouse and the master bedroom is in top floor. I had the same issue as other multiple story building owners reported, the top floor gets too hot and doesn't matter what AC temperature I set it was never enough. There was time when I was running 4 fans from every direction to cool it down. Finally I decided to go for portable AC. I was reluctant at first because there are mixed reviews about portable ACs in general but didn't have any other options so had to give it a try. I did lots of research and finalized this AC and so far this is the best investment I have mad. This AC literally blast the cold air and my master bathroom gets cool within 10-15 mins. The best part about this unit is that it has thermostat so you can set the desired temp and it will maintain that. I don't have to worry about it keeps running. It has 3 fan speed to select and can also use it as either AC or just Fan or a humidifier. There is one negative points this unit has is that it's little bit loud. It is definitely not for someone who likes quite at night to sleep. I like white noise and use to of using fan so I got used to of the AC noise in w days. Other then that this is the best portable AC to consider.