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2. Building envelope - Wikipedia

   en.wikipedia.org/wiki/Building_envelope

   A blower door test can be used to test the quality of the air sealing of the building envelope. Smoke pencils can be used to detect gaps and caulking and weather-stripping can be used to improve air sealing. [10] HVAC systems can ensure that a building’s air intake is both adequate, safe, and energy efficient.

3. Heating, ventilation, and air conditioning - Wikipedia

   en.wikipedia.org/wiki/Heating,_ventilation,_and...

   Central, "all-air" air-conditioning systems (or package systems) with a combined outdoor condenser/evaporator unit are often installed in North American residences, offices, and public buildings, but are difficult to retrofit (install in a building that was not designed to receive it) because of the bulky air ducts required. [32] (Minisplit ...

4. Grille (architecture) - Wikipedia

   en.wikipedia.org/wiki/Grille_(architecture)

   A wooden window grill in Plaza del Conde del Real, Valencia ().The structure was probably used as a stable. Grille, and control for an air duct. A grille or grill (French word from Latin craticula, small grill) is an opening of several slits side-by-side in a wall, metal sheet or another barrier, usually to allow air or water to enter and/or leave and prevent larger objects (such as animals ...

5. 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 ...

6. Can cold weather make you sick? Your grandma wasn't entirely ...

   www.aol.com/cold-weather-sick-grandma-wasnt...

   Research suggests flu viruses in high humidity can cling to water molecules and then fall out of the air. That prevents viruses from staying airborne. That prevents viruses from staying airborne.

7. Suntop Homes - Wikipedia

   en.wikipedia.org/wiki/Suntop_Homes

   These would freshen the air, and green complements the red and brown of Wright's materials. Plants here would even be visible outside, through the large windows, and would unify the garden outside with the garden inside. [2] A decorative, Art Deco Usonian lamp lights the mezzanine's dining-table. It's near the outer corner of the mezzanine, at ...