When purchasing a portable the should think about the size of room always be cooled and after purchase one with the right number of BTU's. For example, 7500-BTU's will comfortably cool a 150 sq . ft . room. The BTU's increase, as the price the unit increases, Deep Freeze AC to be able to 12000 BTU that will comfortably cool a 350 square feet room. Amongst the great reasons for having these air...