Air conditioning was not invented for human comfort

Initially, air conditioning was invented to keep industrial equipment functional. In 1902, engineer Willis Carrier created the first air conditioning system for a printing plant, where humidity was affecting the printing process.

Early systems used ammonia and other toxic substances

The first air conditioning models used substances like ammonia and sulfur dioxide as refrigerants, which were hazardous to health. Modern systems use safer agents, such as R32, which are more environmentally friendly.

Air conditioning revolutionized the cinema industry

In the 1920s, movie theaters were among the first public buildings to be equipped with air conditioning. People went to the cinema not only for the movies but also to escape the summer heat, leading to the success of “summer blockbusters.”

Energy efficiency has drastically improved

Modern air conditioning systems are much more energy-efficient than those from the past. Current technologies can save up to 50% of the energy required to cool a home compared to models from the ’70s and ’80s.

Air conditioning changed architectural dynamics

Before air conditioning, buildings were designed with large windows and high ceilings to facilitate natural ventilation. With the introduction of air conditioning, architecture changed, allowing for the construction of modern buildings with fewer windows and better insulation.

It can improve air quality

Air conditioning not only cools but also improves indoor air quality by filtering dust, pollen, and other particles. This is particularly beneficial for people who suffer from allergies or respiratory conditions.

Increased work productivity

Studies have shown that air conditioning contributes to increased productivity in the workplace. Controlled temperature and thermal comfort allow employees to focus better and be more efficient.

Air conditioning contributes to the longevity of electronics

High temperatures can affect the functioning and durability of electronic equipment. Air conditioning helps maintain a constant temperature and prevents overheating of electronic devices, thus extending their lifespan.

The first air conditioners were massive and expensive

The first air conditioning units were so large they took up almost an entire room and were extremely costly. They were only available to large companies or the very wealthy. Over time, their size and cost decreased, making them accessible to most households.

There is an optimal “comfort temperature”

Experts recommend that the ideal temperature for human comfort and energy efficiency is between 22 and 24 degrees Celsius. Lower temperatures not only increase energy consumption but can also cause discomfort, especially if the difference from the outside temperature is too large.

These facts highlight the significant impact air conditioning has had on technology, architecture, and even modern lifestyles.