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2. 15 products to help you stay cool in the extreme heat: 'A ...

   www.aol.com/lifestyle/products-to-help-you-stay...

   Once absorbed, the water slowly evaporates to keep you for long stretches. "I play golf in Texas, where it is hotter than the devil's breath," wrote one of over 5,000 rave reviewers. "I got this ...

3. 10 cooling products to help you beat the heat this summer

   www.aol.com/lifestyle/10-products-that-will-help...

   Of course, staying cool in the summer is about more than figuring out how to cool down your hot bedroom. After all, there are 16 other hours during the hottest parts of the day that you'll need to ...

4. The Best Humidifiers to Help You Breathe Easier - AOL

   www.aol.com/lifestyle/best-humidifiers-help...

   Warm Mist: Using a heating element to boil water and make steam, warm-mist humidifiers can add some nice heat in the winter but are best kept away from children because of it. You can also use ...

5. Heat pump - Wikipedia

   en.wikipedia.org/wiki/Heat_pump

   An air source heat pump (ASHP) is a heat pump that can absorb heat from air outside a building and release it inside; it uses the same vapor-compression refrigeration process and much the same equipment as an air conditioner, but in the opposite direction. ASHPs are the most common type of heat pump and, usually being smaller, tend to be used ...

6. Heat recovery ventilation - Wikipedia

   en.wikipedia.org/wiki/Heat_recovery_ventilation

   Diagramatic operation of a thermal wheel Ljungström Air Preheater by Swedish engineer Fredrik Ljungström (1875–1964). A thermal wheel, also known as a rotary heat exchanger, or rotary air-to-air enthalpy wheel, energy recovery wheel, or heat recovery wheel, is a type of energy recovery heat exchanger positioned within the supply and exhaust air streams of air-handling units or rooftop ...

7. Respiratory pump - Wikipedia

   en.wikipedia.org/wiki/Respiratory_pump

   The respiratory pump is a mechanism to pump blood back to the heart using inspiration. It aids blood flow through the veins of the thorax and abdomen . During inhalation, the volume of the thorax increases, largely through the contraction of the diaphragm , which moves downward and compresses the abdominal cavity .