How Your Air Conditioner Could Be Harming Your Lungs

Using air conditioners improperly can harm respiratory health. Overcooling rooms may dry out nasal and throat passages, trigger coughing, and worsen asthma symptoms. Certain groups, including those with chronic conditions, face higher risks from incorrect use. Experts warn that setting temperatures too low can irritate mucous membranes. This weakens their protective function and may lead to illness. The recommended indoor range in summer is 22–25°C, with no more than an 8°C drop from outdoor levels.

Air conditioners do not spread viral infections like colds. However, dirty filters can harbour dust and allergens, worsening reactions for those with allergic rhinitis or COPD. Regular cleaning every two to four weeks is advised, along with professional servicing once or twice a year.

Direct cold airflow should never target people, particularly during sleep or work. This precaution helps prevent bronchospasms in sensitive individuals. Vulnerable groups, such as young children, the elderly, and those with respiratory conditions, must take extra care. Proper air conditioner use can maintain comfort without harm. Keeping filters clean and temperatures moderate reduces health risks. Following these guidelines protects respiratory function for all users.