Excess moisture in a car can often lead to foggy windows, which can be both inconvenient and distracting while driving.

By placing a container of salt in the cabin, drivers may notice that the windows stay clearer for longer periods of time.

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.