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2. Thermoelectric cooling - Wikipedia

   en.wikipedia.org/wiki/Thermoelectric_cooling

   Thermoelectric cooling uses the Peltier effect to create a heat flux at the junction of two different types of materials. A Peltier cooler, heater, or thermoelectric heat pump is a solid-state active heat pump which transfers heat from one side of the device to the other, with consumption of electrical energy, depending on the direction of the current.

3. Fan (machine) - Wikipedia

   en.wikipedia.org/wiki/Fan_(machine)

   A household electric fan A large cylindrical fan. A fan is a powered machine that creates airflow. A fan consists of rotating vanes or blades, generally made of wood, plastic, or metal, which act on the air. The rotating assembly of blades and hub is known as an impeller, rotor, or runner. Usually, it is contained within some form of housing ...

4. Bicycle pump - Wikipedia

   en.wikipedia.org/wiki/Bicycle_pump

   A portable jump-starter for automobiles can sometimes be used to power these types of pumps. Even non-standard do-it-yourself (DIY) 12-volt electric systems that are primarily for bicycle lighting are sometimes used to power these pumps when cigar lighter receptacles are installed. A main advantage to electric pumps is that recent ones take up ...

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

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

   A portable swamp cooler can lower the temperature by as much as 20 degrees, but that depends on how powerful the unit is and how hot and humid the weather is. A small tabletop or cheap floor unit ...

6. Air conditioning - Wikipedia

   en.wikipedia.org/wiki/Air_conditioning

   The air-to-air type re-evaporates the water, discharges it through the ducted hose, and can run continuously. Many but not all portable units draw indoor air and expel it outdoors through a single duct, negatively impacting their overall cooling efficiency. Many portable air conditioners come with heat as well as a dehumidification function. [73]

7. 31 of the best gifts for people who drive a lot - AOL

   www.aol.com/lifestyle/gifts-for-people-who-drive...

   Just grab your ThisWorx car vac from the trunk, plug it into the car’s 12-volt outlet and clean like a pro. Thanks to a HEPA filter, this gadget also eradicates allergens to keep your car ...