Why Do My Eyes Sting When I Turn On the Car Air Conditioner?

[ArianaFitz]

When the car air conditioner is turned on and causes eye irritation, it could be due to a heavily soiled air filter that fails to trap airborne contaminants. Additionally, excessive dust in the air conditioning ducts may blow out particles that irritate the eyes. If the air suddenly becomes irritating while driving, check whether the air conditioner is set to external circulation mode, as this draws in lower-quality outside air. Air Conditioner Maintenance: 1. Replace the Cabin Air Filter: Routine cleaning includes replacing the filter, using cleaning agents, and disassembling for thorough cleaning. Replacing the cabin air filter is the simplest method—low-cost yet effective in maintaining airflow. Owners with basic mechanical knowledge can do this themselves. 2. Ozone Water Sterilization: Use high-concentration ozone water to disinfect the car's air conditioning system. Ozone water is one of the strongest available oxidizers, capable of oxidizing and denaturing bacterial and fungal protein shells, rapidly killing bacteria, spores, and decomposing E. coli, Staphylococcus aureus, hepatitis viruses, and cold viruses.