Mechanic's advice: Lower car windows when turning on AC to vent toxic fumes

A simple tip from a Spanish mechanic is gaining traction online for its potential to improve driver safety and health. Juan José, a mechanic, shared a crucial piece of advice: "You must turn on the air conditioning with the windows down for a few seconds to ventilate the car."

This advice addresses a common mistake drivers make. When a car is parked under direct sunlight, its interior can quickly reach temperatures as high as 60°C. At these extreme temperatures, the car's plastic components and synthetic materials release toxic gases and chemical vapors. Many drivers make the mistake of getting into a hot car, immediately turning on the AC to full blast, and closing the doors. This action forces occupants to inhale these harmful substances concentrated in the enclosed space.

The scientific explanation behind the mechanic's recommendation is concerning. Driving in an environment exceeding 35°C can increase the likelihood of traffic accidents by 25%, as it impairs a driver's reflexes. Experts suggest maintaining a constant temperature of around 22°C inside the vehicle to optimize concentration. Additionally, checking the climate control system for small water droplets on the floor after use is a good indicator of its optimal functioning.