Carrier's gadget instead uses the heat in outdoor air as the energy source.
Indoor air can be up to 10 times as polluted as outdoor air, triggering health problems such as asthma.
Current HVAC systems get rid of stale, germ-ridden indoor air by cooling or heating fresh outdoor air and blowing it through ventilation ducts, a process that gobbles electricity.
Yet, despite all the evidence implicating both indoor and outdoor air pollution's harmful impact on public health, we still have so much to do to clean up our act.
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And what is the best way to air-condition the outdoor decks during those sweltering Mediterranean cruises?
Because of the smoke, ash and winds, people in affected areas were urged to be cautious and to avoid unnecessary outdoor activities, the Ventura County Air Pollution Control District said.
The theory behind outdoor napping is that children exposed to fresh air, whether in summer or the depths of winter, are less likely to catch coughs and colds - and that spending a whole day in one room with 30 other children does them no good at all.
It has a whitewashed al fresco restaurant that specializes in Mediterranean fare, a night-lit swimming pool surrounded with beanbags, 23 air-conditioned beachfront bungalows with Balinese-style outdoor bathrooms and a two-bedroom villa with plunge pool set on a hill.
Rooms with outdoor balconies also make inhaling bellyfuls of fresh ocean- and mountain-cleansed air a morning ritual.
Combining modern Mauritian style (open-air architecture, thatched roofs and wooden decks) with indulgent amenities (outdoor showers and private plunge pools), this Indian Ocean resort is situated on the east side of Mauritius walk across a wooden bridge to reach part of the resort on a private island.
In August 2015, the Tin Homecoming Open Air Cinema will take the film back to its historical setting, with an outdoor viewing at the Botallack cliffs.
As evening prayers fill the air, hundreds of people gather to break the Ramadan fast in a huge outdoor restaurant in the southern suburbs of Beirut - an area where Hezbollah is in full control.
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