Your best option is the Frigidaire FRA053PU1 5,000 BTU Portable Air Conditioner, which is a powerful unit, but is not expensive.
Frigidaire’s FRA053PU1 5,000 BTU 115-Volt Portable unit is the best portable air conditioner for a small room that is under 216 square feet. The electronic controls are ready-select, allowing for the ease of selection of the various options, by just touching a button. You are able to control the temperature and speed of the fan, from across the room with a remote control that has full-function capabilities.
There is more flexibility with the cooling, and the air can be automatically directed with the swing air direction control, because of the three different fan speeds, which the multi-speed fan features. Allergy sufferers will be provided with relief from pollen and impurities in the air, with the clean air ionizer of the unit.
Also the antibacterial filter allows for the reduction of bacteria and room odors, as well as airborne particles, resulting in a comfortable environment. The SpaceWise portable design has integrated side handles and caster wheels, which allow for easy relocation of the unit within your home.
This portable 5,000 BTU unit can efficiently cool a room during a hot day or night, and does not keep you awake, as it operates quietly. The Energy Efficiency Ration (EER) is 8.5 and provides the cool, convenient comfort you desire.
The temperature control of the unit will maintain a preset room temperature, with little or no effort, and so you can therefore keep the room at your ideal comfort level. An additional benefit is the low voltage start-up, which contributes to conservation of energy.