This receptacle has to be manually emptied on a periodic basis by the owner. Dual-hose AC units are perfect for larger areas because they can cool them more quickly than single-hose ACs. Most are white and sleek with a design that's not too loud or attention-grabbing. Regular air conditioners are not able to be moved and can only be fixed in one place. If there is more moisture than heat, some models can switch to a dehumidification-only mode. We bring you the latest news and information on computers, people, technology, and inventions. Portable air conditioners use this unit to measure their cooling power, so the higher the BTU rating, the larger the room an air conditioner can cool. Black+Decker BPACT14HWT has a lot to offer for its price. In our cooling tests it performed the best, lowering the room temperature by 3.6°C over two-hours. Almost every model includes a venting kit that allows you to vent the excess warm air outside, keeping your space cool. To do this you will need multiply the length by the width. If, for instance, you're cooling your bedroom, placing your portable AC next to an open window would help. If you don’t have a window like this, a portable AC is the best way to keep cool. A portable AC's BTU (British Thermal Unit) rating measures the air conditioner's cooling capacity. A high-quality indoor unit will keep the air inside the room cool and lower the temperature of the outside air before it filters inside. Our Knowledge Centre is a great place to keep up with the latest news and offers, or to read about the most popular topics.