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2. The best portable air conditioners - AOL

   www.aol.com/news/best-portable-air-conditioners...

   With 14,000 BTUs of cooling power (the most of any single-hose portable air conditioner on this list), this portable AC is designed to cool a room up to 700 square feet in size, De’Longhi says ...

3. Packaged terminal air conditioner - Wikipedia

   en.wikipedia.org/wiki/Packaged_terminal_air...

   Packaged terminal air conditioner installed in a residential apartment. A packaged terminal air conditioner (PTAC) is a type of self-contained heating and air conditioning system intended to be mounted through a wall. [1] The first practical semi-portable air conditioning unit invented by engineers at Chrysler Motors. It entered the market in ...

4. Air conditioning - Wikipedia

   en.wikipedia.org/wiki/Air_conditioning

   The efficiency of air conditioners is often rated by the seasonal energy efficiency ratio (SEER), which is defined by the Air Conditioning, Heating and Refrigeration Institute in its 2008 standard AHRI 210/240, Performance Rating of Unitary Air-Conditioning and Air-Source Heat Pump Equipment. [61]

5. This portable AC unit can make a room 20° colder in minutes

   www.aol.com/lifestyle/memorial-day-sale-portable...

   The need for air conditioning is real, and lucky for us, Amazon has a budget-friendly a/c unit: the Midea Portable Air Conditioner is just $250 with the on-page coupon. Midea $250 $339

6. Evaporative cooler - Wikipedia

   en.wikipedia.org/wiki/Evaporative_cooler

   An evaporative cooler (also known as evaporative air conditioner, swamp cooler, swamp box, desert cooler and wet air cooler) is a device that cools air through the evaporation of water. Evaporative cooling differs from other air conditioning systems, which use vapor-compression or absorption refrigeration cycles.

7. Dehumidifier - Wikipedia

   en.wikipedia.org/wiki/Dehumidifier

   In an air conditioner, however, the air passes over the cold evaporator coils and then directly into the room. It is not re-heated by passing over the condenser, as in a refrigeration dehumidifier. Instead, the refrigerant is pumped by the compressor to a condenser which is located outside the room to be conditioned, and the heat is then ...