If you’ve ever gotten into your car and been greeted by foggy windows and a musty odor, you’re not alone. These common issues, especially in older vehicles, can turn a routine drive into an uncomfortable or even unhealthy experience. But the solution doesn’t require pricey gadgets or chemical sprays—it might already be in your kitchen.

Ordinary salt, a common household staple, has powerful moisture-absorbing properties. Salt is hygroscopic, meaning it draws water from the air. When placed in your car, it helps reduce humidity, preventing condensation on windows and creating a drier, healthier environment. It’s a simple, natural dehumidifier that’s both inexpensive and effective.

By removing excess moisture, salt can also eliminate that stubborn musty smell caused by mold and mildew. Unlike air fresheners that just mask the problem, salt tackles it at the source. For people with allergies or respiratory sensitivities, especially older drivers, this natural remedy can significantly improve air quality.