eBay has the Insignia 350-sq. ft. Portable Air Conditioner (White/Grey, NS-AC8PWH9) for $200 with free shipping. List price: $250. The discounted price is reflected in cart. Features a 4,500-BTU output and adjustable settings for fan speed and cooling levels.
Amazon has the Renpho HEPA Filter Air Purifier (RP-AP001) for $159.99 - $10 off coupon (Clip extra savings coupon applied at checkout) - $51.20 off with coupon 2KT8E7SG = $98.79 with free shipping. It features a four stage filtration system and circulates air in rooms up to 301 sq. ft. Has excellent Amazon Reviews.