The history of air conditioners can be traced back to the Ancient Rome where cold water was used in circulation system. To achieve cooling, circulation systems were built into the walls to carry cool water throughout the structures.
In China, rotary fans were used to circulate cool air about 3000 years ago.
Similar cooling attempts were also common in medieval Persia where a combination of wind towers and cisterns were used for indoor cooling in hot weather.
Modern day air conditioning was a result of advancements in chemistry science in the 19th century. Willis Havilland Carrier was the first person to invent a full-scale air conditioning unit in 1902.
There are several benefits that are associated with this equipment. Disinfection, filtration, humidification and cooling processes are some of those benefits.
The system also has health benefits. It can be used in operation theaters to provide a clean and germ free atmosphere which is critical for the patient’s recovery. It is also beneficial to those people suffering from allergies such as asthma. Air conditioning can also save lives of children and the elderly in immense heat wave conditions.
The conditioning equipment should be well maintained. Ill-maintained system can promote harmful microorganisms such as Ligionella pneumophila. These microorganisms are known to promote the harmful Legionnaire disease.
Poorly maintained systems also generate sounds that are irritating. Such sounds can reach very high levels and can lead to hearing loss.