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2. Evaporative cooler - Wikipedia

   en.wikipedia.org/wiki/Evaporative_cooler

   The system has very high efficiency but, like other evaporative cooling systems, is constrained by the ambient humidity levels, which has limited its adoption for residential use. It may be used as supplementary cooling during times of extreme heat without placing significant additional burden on electrical infrastructure.

3. Portable Swamp Coolers That Lower Temps (and Energy Costs)

   www.aol.com/portable-swamp-coolers-lower-temps...

   A portable evaporative cooler, also called a swamp cooler, is an affordable alternative to a portable or window air conditioner if you live in a dry climate. Find the best room-size portable swamp ...

4. Pot-in-pot refrigerator - Wikipedia

   en.wikipedia.org/wiki/Pot-in-pot_refrigerator

   Several key considerations are important for determining if an evaporative cooling device will provide effective cooling and storage. ECCs (evaporative cooling chambers) and clay pot coolers provide the most benefits when they are used in low humidity climates (less than 40% relative humidity), the temperature is relatively high (maximum daily ...

5. Evaporative cooling chambers - Wikipedia

   en.wikipedia.org/wiki/Evaporative_cooling_chambers

   Evaporative cooling chambers (ECCs), also known as "zero energy cool chambers" (ZECCs), are a type of evaporative cooler, which are simple and inexpensive ways to keep vegetables fresh without the use of electricity. Evaporation of water from a surface removes heat, creating a cooling effect, which can improve vegetable storage shelf life.

6. Take Up to 45% Off Summer Cooling Essentials, Including Air ...

   www.aol.com/news/45-off-summer-cooling...

   Dreo Portable Air Conditioner, 14,000 BTU This portable air conditioner has 14,000 BTU of cooling power and a noise-isolation system so you can use it at night without it waking you up.

7. Absorption refrigerator - Wikipedia

   en.wikipedia.org/wiki/Absorption_refrigerator

   Solar energy, burning a fossil fuel, waste heat from factories, and district heating systems are examples of heat sources that can be used. An absorption refrigerator uses two coolants: the first coolant performs evaporative cooling and then is absorbed into the second coolant; heat is needed to reset the two coolants to their initial states.