Warning from Air Conditioning Experts: Setting Temperature Below 18°C Can Have Consequences
Experts warn that setting air conditioning temperatures below 18°C can lead to health problems and increased energy consumption.

## The Ideal Temperature for Comfort The ideal temperature for comfort in a closed environment, such as a home, is between 23°C and 25°C, according to the Reglamento de Instalaciones Térmicas en los Edificios (RITE). This temperature range is suitable for "passive" activities, meaning activities that do not require physical exertion. ## Health Risks Associated with Low Temperatures Setting the air conditioning temperature below 18°C can lead to health problems, including respiratory issues such as colds, hoarseness, and pharyngitis. According to a survey by the Sociedad Madrileña de Neumología y Cirugía Torácica (NEUMOMADRID), 20% of people exposed to air conditioning have experienced respiratory problems. The low temperature and dry air produced by air conditioning systems can damage mucous membranes. The condensation of humidity in the air is expelled outside the home through a drainage tube, leaving the air dry and potentially causing health problems. ## The Importance of Humidity Levels Maintaining a humidity level between 45% and 60% in the home is essential, especially during the summer months. However, using air conditioning for several hours a day can lower the humidity level, potentially causing health problems. ## The Risks of Low Temperatures for Vulnerable Groups People with chronic illnesses, older adults, and young children are more susceptible to the negative effects of low temperatures. These groups may require a minimum indoor temperature above 18°C to maintain a safe and balanced environment. ## The Consequences of Low Temperatures for Energy Consumption Setting the air conditioning temperature below 18°C can also lead to increased energy consumption. According to Endesa, for every degree below the optimal temperature, the energy consumption can increase by 5% to 10%. This is because the air conditioning system will work at full capacity to try to reach the set temperature, wasting the energy-saving capabilities of inverter technology. ## The Importance of Choosing the Right Temperature While air conditioning systems may allow users to set temperatures as low as 16°C or 18°C, this is not recommended. These low temperatures can lead to health problems and increased energy consumption. Instead, users should choose a temperature between 24°C and 25°C, which is more suitable for comfort and energy efficiency. In conclusion, setting the air conditioning temperature below 18°C can have serious consequences for health and energy consumption. Users should choose a temperature that balances comfort and energy efficiency, and avoid setting the temperature too low, especially during the summer months.





