When the hot and humid air of summer hits, and an air conditioner is not an option, a powerful fan is the next best thing. When choosing which model to buy, look for one that can distribute and circulate cool air around the room you are in. You might also look into getting an air ionizer fan which ionizes the air in the room. Some say this allows for a fresher air to circulate throughout the room.
Air ionizer fan:
Air ionizer fan pictured: Lasko 42-Inch Wind Curve Fan with Remote
Also of interest: FIVE STAR FS8088 Ionic Air Purifier Pro Ionizer Cleaner with UV / SPT SF-609 Portable Evaporative Air Cooler with Ionizer by Sunpentown / Sunpentown SF-1530i Mini Tower Fan with Ionizer