pressure in ductwork is expressed in which of the following?
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Air conditioning typically involves five main changes to the air: cooling the air to lower its temperature, removing excess moisture through dehumidification, filtering the air to remove dust and particles, circulating the conditioned air throughout the space, and sometimes adding fresh outdoor air to maintain indoor air quality.
Air pressure changes mainly due to changes in elevation and changes in weather patterns such as the movement of high and low-pressure systems. As elevation increases, air pressure decreases because there is less air above exerting pressure. Changes in weather patterns can lead to alterations in air temperature and density, affecting air pressure.
When air pressure changes, it can affect the weather by causing winds to move from high pressure areas to low pressure areas, leading to changes in temperature and moisture. Changes in air pressure can also affect our ears, such as feeling the pressure difference when flying in an airplane or diving underwater.
The condition of the air around you is called air quality. It refers to the cleanliness and healthiness of the air in terms of pollutants, allergens, and other particles present in the atmosphere. Factors such as emissions from vehicles, industrial activities, and natural sources can affect air quality.
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