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2. Evaporative cooler - Wikipedia

   en.wikipedia.org/wiki/Evaporative_cooler

   Air is moved by a centrifugal fan or blower (usually driven by an electric motor with pulleys known as "sheaves" in HVAC terminology, or a direct-driven axial fan), and a water pump is used to wet the evaporative cooling pads. The cooling units can be mounted on the roof (down draft, or downflow) or exterior walls or windows (side draft, or ...

3. Free cooling - Wikipedia

   en.wikipedia.org/wiki/Free_cooling

   There are two free cooling options for a data center, server room and gsm base stations with the first one being an integral free cooling coil or a chiller which works alongside a free cooler unit. Integral chillers are ideal for sites which have limited space and can offer high energy efficiency levels. These units feature high quality ...

4. Dedicated outdoor air system - Wikipedia

   en.wikipedia.org/wiki/Dedicated_outdoor_air_system

   DOAS air handling unit with heat recovery wheel and passive dehumidification. A dedicated outdoor air system (DOAS) is a type of heating, ventilation and air-conditioning system that consists of two parallel systems: a dedicated system for delivering outdoor air ventilation that handles both the latent and sensible loads of conditioning the ventilation air, and a parallel system to handle the ...

5. Free ice cream, misters and cooling stations: How Sacramento ...

   www.aol.com/news/free-ice-cream-misters-cooling...

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6. Air handler - Wikipedia

   en.wikipedia.org/wiki/Air_handler

   4 – Heating and/or cooling coil 5 – Filter compartment 6 – Mixed (recirculated + outside) air duct A rooftop packaged unit or RTU. An air handler, or air handling unit (often abbreviated to AHU), is a device used to regulate and circulate air as part of a heating, ventilating, and air-conditioning system. [1]

7. The 12 Best Cool-Mist Humidifiers That Will Become the Unsung ...

   www.aol.com/12-best-cool-mist-humidifiers...

   Amazon. ATTN: Allergy sufferers. This Levoit humidifier has a 360-degree rotating nozzle that spreads an ultra-fine cool mist into the air for fast relief from allergens.