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2. Humidifier - Wikipedia

   en.wikipedia.org/wiki/Humidifier

   A humidifier is a household appliance or device designed to increase the moisture level in the air within a room or an enclosed space. It achieves this by emitting water droplets or steam into the surrounding air, thereby raising the humidity.

3. Indoor air quality - Wikipedia

   en.wikipedia.org/wiki/Indoor_air_quality

   However, for most of the US and many parts of Europe and Japan, during the majority of hours of the year, outdoor air temperatures are cool enough that the air does not need further cooling to provide thermal comfort indoors. [citation needed] However, high humidity outdoors creates the need for careful attention to humidity levels indoors ...

4. Air filter - Wikipedia

   en.wikipedia.org/wiki/Air_filter

   Diagram of a HEPA (high-efficiency particulate air) filter Reusable washable HVAC air filter. A particulate air filter is a device composed of fibrous, or porous materials which removes particulates such as smoke, dust, pollen, mold, viruses and bacteria from the air.

5. Thermostat - Wikipedia

   en.wikipedia.org/wiki/Thermostat

   A thermostat exerts control by switching heating or cooling devices on or off, or by regulating the flow of a heat transfer fluid as needed, to maintain the correct temperature.

6. Remove Banner Ads with Ad-Free AOL Mail | AOL Products

   www.aol.com/products/utilities/ad-free-mail

   SYSTEM REQUIREMENTS. Mobile and desktop browsers: Works best with the latest version of Chrome, Edge, FireFox and Safari. Windows: Windows 7 and newer Mac: MacOS X and newer Note: Ad-Free AOL Mail ...