Ebay offers 10000 BTU Window Air Conditioner for $223.53 (reg. $499.98) with free shipping. 

Product Description:
 The Air conditioner is quiet operation, very easy to operate, washable and reusable air filter can be easily slide out and can be easily washed with warm water and dish soap or vacuum cleaner. The Air conditioner can quickly cool down your home, office, or apartment for maximum comfort. So what are you waiting for? Just take it home!