A portable A/C makes home cooling mobile. These units are mounted on wheels for transport and sized to fit through interior doors in residences so they may be easily re-positioned anywhere in the house. Most models can serve as both temporary spot coolers bringing quick comfort to any space in the house, or adapt to a more stationary role in a dedicated room, substituting for a conventional window air conditioner.
Air conditioners, like every other piece of equipment in your home, have their span of days and then it's time to replace them. Fortunately, they do last a long time — on average, 10 to 15 years. In fact, the age of your A/C system may be one key indicator that it's time for to replace it.