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Affects Indoor Air. If you work in an air-conditioned building with poor ventilation, it can raise your risk of “sick building syndrome.”. Symptoms include headaches, dry cough, dizziness and ...
Biological contamination can cause allergic reactions, including hypersensitivity pneumonitis, allergic rhinitis, and asthma. In large buildings, toxins released by microorganisms that live in the ...
Benefits. Drawbacks. Types of ionizers. Takeaway. An air ionizer releases negative ions into the air. This helps particles clump together and land on a surface, which could be cleaned. Benefits ...
A packaged terminal air conditioner (PTAC) is a type of self-contained heating and air conditioning system intended to be mounted through a wall. [1] The first practical semi-portable air conditioning unit invented by engineers at Chrysler Motors. It entered the market in 1935, and was designed to fit under a window like many modern PTACs. [2]
Air conditioning can be achieved using a mechanical 'air conditioner' or by other methods, including passive cooling and ventilative cooling. [2][3] Air conditioning is a member of a family of systems and techniques that provide heating, ventilation, and air conditioning (HVAC). [4] Heat pumps are similar in many ways to air conditioners, but ...
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 ...
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