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  2. This Best-Selling Portable Cooling Fan a ‘Life Saver’—and It ...

    www.aol.com/lifestyle/best-selling-portable...

    The Jisulife Handheld Mini Fan is nearly half-off ahead of Amazon Prime Day. It’s portable, effective, and essential in battling heat wave fatigue. This Best-Selling Portable Cooling Fan a ...

  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. 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.

  5. Heating, ventilation, and air conditioning - Wikipedia

    en.wikipedia.org/wiki/Heating,_ventilation,_and...

    EER is the Energy Efficiency Ratio based on a 35 °C (95 °F) outdoor temperature. To more accurately describe the performance of air conditioning equipment over a typical cooling season a modified version of the EER, the Seasonal Energy Efficiency Ratio (SEER), or in Europe the ESEER, is used. SEER ratings are based on seasonal temperature ...

  6. 6 Affordable, Energy-Efficient Appliances That Will Save You ...

    www.aol.com/6-affordable-energy-efficient...

    “Smart thermostats adjust the heating and cooling in your house based on your preferences, which results in a far more energy-efficient system,” Kerr advised. “Your yearly savings on heating ...

  7. Fight the extreme heat with this $30 cooling neck fan: 'Best ...

    www.aol.com/lifestyle/stay-cool-neck-fan-deal...

    JISULIFE Portable Neck Fan $31 $56 Save $25 This portable neck fan has a hands-free design that lets you wear it while doing other tasks — like working, cooking, doing yard work, at a ball game ...

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