While it won’t completely replace regular ventilation or professional cleaning, this trick can provide an extra layer of prevention against fog build-up. Another benefit of using salt is its affordability and availability.
Unlike specialized car products, salt is inexpensive and easy to find.
If used correctly—kept in a secure, open container where it can absorb air moisture—it can last for several weeks before needing replacement. For those who drive daily or park outdoors, this method is a quick and low-cost option to try. Of course, this tip is not a miracle fix, but rather a simple aid that works best when combined with proper car care.
Ensuring your vehicle is well-ventilated, regularly drying damp carpets, and checking for leaks are still the most reliable ways to keep your car fresh and clear of excess humidity.
Still, adding a small glass of salt is an easy step that may help improve comfort and visibility during your drives.
