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2. 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 ...

3. The best portable air conditioners - AOL

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

   Portable air conditioners typically run between $250 and $500, depending on the size and amount of features. ... Most units are self-evaporating, which reduces the need to drain water regularly ...

4. 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.

5. 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]

6. 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.

7. These are the best Amazon deals of the week: AirTags, iPads ...

   www.aol.com/amazon-best-deals-01-14-2025...

   Bluetti AC180 Portable Power Station. $459 $999 Save $540. ... especially if you have crow's feet or under-eye wrinkles that you feel self-conscious about. It's $10 off right now on Amazon, plus ...