It is designed to cool rooms up to 250 square feet. It is therefore not a compromise between comfort and functionality. Which model you choose for home use is a personal choice. Some portable ACs from leading HVAC manufacturers are small and light enough to be carried around when traveling. Most portable A/C can be installed into odd-shaped or ceiling vents, or in windows of all shapes and sizes. We all look forward with anticipation to the summer, when the weather is warm and the sky is clear blue. Easy to install, they can be used for cooling or heating a single room. The exhaust hose will usually be connected to the rear of a portable air conditioner conditioner and vents out through a window, wall, or drop ceiling. Contact a professional immediately if your unit is having problems. If they are worth the money, it ultimately depends on what you want from them and how much you expect to get out of them. In our air conditioner testing, we measure the time it takes for a portable air conditioning unit to lower the temperature of the test chamber from 90deg F down to 85deg F. That's why it's essential to have a reliable and efficient emergency air pump in your car as an American car owner. We recommend window units as they are less expensive, require less power and perform better. Portable units make it easy to move or store them if your home or office moves. Renting an air conditioner lets you try out different portable air conditioners without having to buy them.