If you talk about the term air conditioning, what immediately comes to mind into most if not all people is that it means cooling room temperature. However, if you go into technicalities, air conditioning is a process where room temperature is controlled through a number of other processes including cooling, heating, as well as ventilation. In construction terms, it is referred to as HVAC or heating, ventilation, and air conditioning system. Click here to find a Thousand Oaks HVAC contractor.

The first use of air conditioning units dates back during 1902 in the New York Stock Exchange building where they were used to heat as well as cool the air. It is also during that year that the first ever air conditioning unit run by electricity was invented by no other than Willis Havilland Carrier. The air conditioning unit was not only capable of cooling the air but also it was capable of controlling humidity.

During those times, air conditioning units were only used majority of the time in manufacturing facilities. The reason being that products being manufactured are all the more improved and employee productivity is increased because the effects of humidity are controlled. Several decades later, the 1950s to be exact, automobiles and residential homes have begun making use of air conditioning units as well. To find out how to make an air conditioning contract, click here.

Air conditioning units are able to cool the air because of a refrigerant. A refrigerant is a substance that is capable of altering the temperature of air. When air conditioning units first came to exist, they were being manufactured with the used of dangerous gases such as methyl chloride and ammonia that were used as refrigerants. After several years, they were then replaced by a patented chemical substance, the one you call Freon.

Freon is a substance that has been shown to not pose any danger to humans. However, it has been proven to be of danger to the environment. When they are released into the atmosphere, they emit a chlorofluorocarbon gas that has been shown and proven to contribute to the thinning of the Earth's ozone layer. A number of air conditioning units until this day still make use of this dangerous gas, the one you call HCFC R-22. However, more and more efforts have been made in the current years to make sure that these harmful gasses are to be totally eradicated from the air conditioning units being sold in the market.

So, when it comes to getting air conditioning units, make sure to choose one that is safe not only to the people around it but also to the environment.

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