Motorists are being urged to think twice before pressing the inner circulation button in their vehicles, as experts warn it could pose health risks. The button, found in almost every car, is often used to cool the cabin faster or block out unpleasant odours, but specialists say it may do more harm than good.
According to experts at BigWantsYourCar.com, using the inner circulation setting too frequently can lead to illness and long-term health problems. When a car sits in the sun, materials inside the cabin release chemical compounds, including formaldehyde, a known human carcinogen. The inner circulation setting recycles air inside the car rather than drawing in fresh air, trapping these harmful gases.
Short exposure to formaldehyde can cause nausea or headaches, while longer exposure has been linked to cancers such as myeloid leukaemia and nasal cavity cancer. The experts advise that the safest step when entering a hot car is to bring in fresh air before setting off, rather than relying on the circulation button.
To avoid pressing the button, drivers are encouraged to open windows or set ventilation to fresh air. Airing out the car before driving is a simple but effective way to protect health and stay safe on the road.
