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Central air conditioning is used in homes and businesses  worldwide, but many of central air's negative effects get little recognition.  Central air conditioning is essential in hot climates and makes summertime more  comfortable. However, central air conditioning can aggravate certain health  issues and contaminate the air with organic particles. It has even been liked to  the spread of disease.

Aggravates Respiratory Conditions

Central air conditioners create condensation on the  cooling coils and in drain pans that can grow microorganisms and mold. These are spread  throughout the home by the central air conditioning ventilation system. People  who suffer from asthma, bronchitis or other respiratory illnesses can get  serious lung infections, shortness of breath, wheezing or other severe  reactions. Mold from central air conditioners can  affect healthy individuals, causing wheezing, coughing and upper respiratory  tract symptoms.

 Indoor Air Contamination

                  Indoor air pollutants might be greater than contaminated air outside. Because  people spend a majority of their time indoors, this increases risk factors for  people with respiratory problems and cardiovascular disease. Central air  conditioning units can spread indoor pollutants such as  bacteria, molds, mildew, viruses, pollen and animal dander. Outdoor air is  necessary to reduce the amount of air pollutants in the home. Central air units  do not bring fresh air into the home, and therefore they do not help reduce the  concentrations of indoor pollutants.

Can Cause Workplace Illness

In a study People working in office buildings with  central air conditioning had more symptoms of illness than those who did not  work in buildings with central air. The symptoms included headache, fatigue,  mucous membrane irritation, breathing difficulties and skin irritations. The  study noted that a likely explanation is central air conditioning ventilation  systems spread contaminants in the air.
The term “Sick  Building Syndrome” refers to symptoms associated with large numbers of people  getting sick in a building, but when they leave the building, their symptoms  disappear. The sicknesses might be caused by poor air conditioning ventilation  system

Risks:

§  Sudden changes in temperature and humidity affect the respiratory system.

§  It has a drying effect on skin and mucous membranes.

§  It adds to ambient noise, contributing to noise pollution.

§  The air circulation can transmit infectious respiratory diseases.

§  Airborne dust and fungi can cause allergic reactions.

§  Air conditioning is associated with chronic rhinitis and pharyngitis, throat irritation and hoarseness.

§  Air conditioning can exaccerbate eye conditions such as conjunctivitis and blepharitis, as well as causing problems for contact lens wearers.

        And the one thing i noted while joining accenture is that nowadays people have become so addicted to airconditioning and it's abusively cool temperatures are really hurting people who are not yet adapted to this environment. After my very first month of joining itself i had to consult a doctor for getting away with frequent colds and am still taking tablets to overcome this problem. THE LAST THING I WOULD LIKE TO SAY ARE THE WORDS UTTERED BY MY DOCTOR " PEOPLE PREFERRING EXTREMELY LOW TEMPERATURES OF AIR CONDITIONING WILL NOT FEEL THE CONSEQUENCES IN YOUNGER AGE. BUT THEY WILL SURELY RETHINK ABOUT DOING IT IN NEAR FUTURE"