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  2. Ditch the Heat With This Editor-Loved Whynter Portable AC ...

    www.aol.com/lifestyle/ditch-heat-editor-loved...

    Cool down your home for under $500 with this dual-hose portable air conditioner, just in time for summer. Ditch the Heat With This Editor-Loved Whynter Portable AC That's Almost 30% Off on Amazon ...

  3. Air conditioning - Wikipedia

    en.wikipedia.org/wiki/Air_conditioning

    Air conditioning can be achieved using a mechanical 'air conditioner' or by other methods, including passive cooling and ventilative cooling. [2] [3] Air conditioning is a member of a family of systems and techniques that provide heating, ventilation, and air conditioning (HVAC). [4]

  4. 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 ...

  5. Passive cooling - Wikipedia

    en.wikipedia.org/wiki/Passive_cooling

    Passive cooling covers all natural processes and techniques of heat dissipation and modulation without the use of energy. [1] Some authors consider that minor and simple mechanical systems (e.g. pumps and economizers) can be integrated in passive cooling techniques, as long they are used to enhance the effectiveness of the natural cooling process. [7]

  6. Refrigerant - Wikipedia

    en.wikipedia.org/wiki/Refrigerant

    A DuPont R-134a refrigerant. A refrigerant is a working fluid used in cooling, heating or reverse cooling and heating of air conditioning systems and heat pumps where they undergo a repeated phase transition from a liquid to a gas and back again.

  7. Wildfire on Maui kills at least 6, damages over 270 ... - AOL

    www.aol.com/news/hawaii-wildfires-burn-homes...

    Flyovers of the coastal town of Lahaina by U.S. Civil Air Patrol and the Maui Fire Department showed the extent of the loss, said Mahina Martin, a spokesperson for Maui County.