This portable air conditioner cools and dehumidifies your home or office spaces quickly and quietly. The LED display shows the set temperature and is easy to use. With two fan speeds and five modes, you can choose a combination of desired settings from the control panel or remote. The Follow Me temperature sensor built into the remote control provides you with the most accurate thermostat reading. The attached wheels give this portable air conditioner extra portability. Installation is a breeze! Simply install the included airtight bracket in the existing frame, and connect the clip on drainage hose. It works with both hung and sliding windows. Models manufactured before 2017 were tested under the ASHRAE standard that listed a higher cooling capacity output. While the SACC BTU rating is listed lower than the previous ASHRAE rating, the construction and cooling capacity of the models remain unchanged.