The sleep mode gradually reduces fan speed until it switches off, providing energy-efficient cooling for peaceful sleep.

When shopping for the perfect free-standing portable air conditioner, it is easy to become overwhelmed by the many options available. This buyer guide discusses some factors to look for when shopping for a free-standing, portable AC unit. First, portable air conditioners come in all shapes and sizes, so selecting the ideal size unit for your space is vital. If the AC unit is too small, it won’t cool the area effectively, while if it is too large, it will waste energy and cost you more to operate. Next, many models offer features like multiple fan speeds, dual hose systems, timers, and remote controls, while others even include a dehumidifier, air purifier, or air ionizer. You may also want to select a model with caster wheels to make moving it around easy. The efficiency of a portable air conditioner is also something to watch out for, as it will affect how much energy it uses over time. Look for models with the ENERGY STAR label and a high EER rating, which indicates that the unit is energy efficient. Another factor to consider is the noise levels of your portable unit. Many free-standing AC units can create quite a bit of noise, so consider this factor before you purchase. Of course, the cost is another factor in selecting a portable air conditioner. Higher-end models with more features will cost more up-front. They can, however, save you money in the long run by consuming less energy and costing less to operate.