Portable air conditioners, window air conditioners, and more cooling models are marked down at Amazon’s Fourth of July sale.

In the context of air conditioners, “ton” doesn’t mean how heavy the unit is — it refers to the amount of heat the AC can remove from a room in an hour. A 1-ton AC can cool 12,000 BTU/hour ...

We tested nine units in a humid Florida home to find the best portable air conditioners of 2025. Here are the models we recommend considering for any size space.