Title: When Was Air Conditioning Invented? | HVAC.com®
Headings: Air Conditioning: Then and Now
Air Conditioning: Then and Now
Different specs
Price differences
Air conditioners save lives

Content: Different specs
Residential air conditioning has come such a long way in the past 100 years. Early air conditioners were loud, lacked efficiency, and were expensive to operate. Today’s air conditioning manufacturers have taken great strides to develop cooling technology that is efficient and convenient, providing consumers with seemingly endless equipment choices. Air conditioning has also become more environmentally friendly as research has shown that Freon is linked to ozone depletion; currently, R-22 refrigerant is being phased out and environmentally-friendly R401A refrigerant is the new standard. Price differences
Air conditioning systems have become much more affordable over the years, leading to their widespread use in American homes. Today, more than 80 percent of homes in the United States have an air conditioning system. The addition of the air conditioner has changed architecture, making it possible to have windowless buildings and dwellings without patios. Air conditioners save lives
Air conditioning didn’t just change the nation’s comfort — it has also played a significant role in lowering the number of heat-related deaths. Between 1960 and 2004, the number of heat-related deaths in the United States was a staggering 80 percent less than between 1900 and 1959.