Many drivers are turning to an unexpected item to keep their cars dry—a glass filled with salt. Though it sounds odd, salt is an effective natural absorber of moisture, helping to reduce fog and damp smells inside vehicles.
The science behind it is salt’s hygroscopic nature—it pulls moisture from the air. So, placing a container of salt inside the car traps humidity, preventing condensation and wetness on surfaces.
This hack is very inexpensive and simple. Just use regular salt in a cup and place it on your dashboard, under seats, or in a cup holder. It’s mess-free and quiet.
On top of drying the air, salt also stops mold and mildew from growing by removing the moisture they need. Salt won’t give your car a salty smell; instead, it freshens the interior naturally.
Other easy moisture-absorbing options include newspaper sheets or silica gel packets, which you can tuck in spots around the car.
Keeping your car’s air dry prevents damage and improves your driving comfort. So next time your windows fog up or your car feels humid, try this simple salt solution that really works.
