Exclusively for our readers, this NewAir Portable Evaporative Cooler with Built-In Air Purifier (model AF-1000B) drops from $199.95 to $145.95 at Air and Water when you add the code BRADSSUMMER at checkout, plus it ships free. This is the best price we could find by $2. It will cool, freshen, and clean the air up to 300 sq. ft. It is energy efficient and can decrease the temperature by up to 30 degrees. There is no sales tax (except CA).