If you are searching for a new window AC unit, you should know that not all air conditioners are created equally. Window air conditioners have become a commodity in the appliance industry and are manufactured under many brand names. These branded air conditioners are available for purchase anywhere from the drugstore to the supermarket, with brand names that you either have never heard of or associate with some other product or industry. These brands usually have no service or parts support after the sale and are made to sell at a lower price with lower end features and quality. However, there are alternatives to these "disposable" air conditioners: brands like Friedrich and Frigidaire. In our window air conditioner review below we will focus on these two great brands.