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2. Corsi–Rosenthal Box - Wikipedia

   en.wikipedia.org/wiki/Corsi–Rosenthal_Box

   An example of a homemade unit. The Corsi–Rosenthal Box is a design for a do-it-yourself air purifier that can be built comparatively inexpensively. It consists of four [1] or five [2] [3] HVAC particulate air filters that form a cube and a box fan to draw air through the filters.

3. Air door - Wikipedia

   en.wikipedia.org/wiki/Air_door

   A typical commercial air curtain enclosure. In North America, the more commonly-used term for an air door is "air curtain". The American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) defines an air door as follows: "In its simplest application, an air curtain is a continuous broad stream of air circulated across a doorway of a conditioned space.

4. Winterize Your Screened-In Porch with These Easy Tips - AOL

   www.aol.com/lifestyle/winterize-screened-porch...

   Start by covering the screens with clear vinyl panels or heavy-duty plastic sheeting. “These materials are easy to install and act as a barrier against cold air,” Thompson explains.

5. Windscreen wiper - Wikipedia

   en.wikipedia.org/wiki/Windscreen_wiper

   A "locomotive-cab-window cleaner" on 12 March 1903 [7] Apjohn's 1903 window cleaning apparatus design. Irish born inventor James Henry Apjohn (1845–1914) patented an "Apparatus for Cleaning Carriage, Motor Car and other Windows" which was stated to use either brushes or wipers and could be either motor driven or hand driven.

6. AOL Mail

   mail.aol.com

   Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

7. Windshield sun shade - Wikipedia

   en.wikipedia.org/wiki/Windshield_sun_shade

   Custom-made car sunshades with additional fastening elements such as hooks, clasps, buckles or magnets that attach to the car frame or shade, are prepared to fit specific car models, and may cover the entire side-window of a car. In a similar way there exist folding sunshades which can be attached to the side window of any car with magnets.