Haier 8,000 BTU Electronic Window Air Conditioner AC Unit with Remote – Link 
This is on sale via eBay daily deals for just $169.99 w/ free shipping!
- 8,000 BTUs make it easy to cool a room between 251 to 350 square feet
- Has an energy efficiency ratio of 11 so your energy bill won’t go through the roof
- Pick the temperature that is perfect for you from the 3 cooling speeds or the 3 fan speeds
- Electronic controls for easy use
- Sleep mode ensures you won’t get too hot or cold during the night and auto-adjusts for you