By example, your bathroom is 8'W x 10.5L which is 84sq.ft You would then multiply that by the ceiling height to get cubic feet in the room. For the purpose of this example I will assume an 8' ceiling, thus we get 84sq.ft x 8' height equals 672cubic feet. The total volume of the room in 672cu.ft and we want 4 air exchanges per hour so we would need to move 672cu.ft x 4 = 2688cu.ft per hour.
The Gobi is a large desert region in Asia covering parts of northern and northwestern China, and of southern Mongolia. The Gobi measures over 1,610 km (1,000 mi) from southwest to northeast and 800 km (497 mi) from north to south.
The desert, according to Wild World -- an important source on the Gobi Desert -- encompasses five broad, and diverse, ecoregions: Eastern Gobi Desert Steppe -- The easternmost of the five ecoregions, the steppe (a plain with few to no trees) covers more than 100,000 square miles at an elevation of 3300 to 5000 feet.ian Shan Range -- The westernmost of the Gobi Desert's ecoregions, the Tian Shan Range covers some 49,800 square miles. It consists of an extensive and isolated mountain range and high ridges interlaced with desert basins.