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2. Air door - Wikipedia

   en.wikipedia.org/wiki/Air_door

   An air door or air curtain is a device used to prevent air, contaminants, or flying insects from moving from one open space to another. The most common implementation is a downward-facing blower fan mounted over an entrance to a building, or over an opening between two spaces conditioned at different temperatures.

3. Air curtain - Wikipedia

   en.wikipedia.org/wiki/Air_curtain

   Air curtain may refer to: Air door, a fan-powered device used for separating two spaces from each other; Pneumatic barrier for containing oil spills; See also

4. Stack effect - Wikipedia

   en.wikipedia.org/wiki/Stack_effect

   The stack effect or chimney effect is the movement of air into and out of buildings through unsealed openings, chimneys, flue-gas stacks, or other purposefully designed openings or containers, resulting from air buoyancy. Buoyancy occurs due to a difference in indoor-to-outdoor air density resulting from temperature and moisture differences ...

5. Pneumatic barrier - Wikipedia

   en.wikipedia.org/wiki/Pneumatic_barrier

   The simplicity of an air curtain system, requiring only air compressors and perforated hoses, could allow for rapid deployment and create aerated zones of oxygenated seawater during a marine emergency. Air curtains are also used to control the release of smoke particles into the environment.

6. Bubble curtain - Wikipedia

   en.wikipedia.org/wiki/Bubble_curtain

   A bubble curtain in Florida used to stop debris entering the marina. A bubble curtain is a system that produces bubbles in a deliberate arrangement in water. It is also called pneumatic barrier. The technique is based on bubbles of air (gas) being let out under the water surface, commonly on the bottom.

7. IKEA launches curtains that purify the air in your home - AOL

   www.aol.com/news/ikea-launches-curtains-purify...

   The curtains are designed to help people live "healthier and more sustainable lives". Skip to main content. 24/7 Help. For premium support please call: 800-290-4726 ...