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- How it works: Salt is hygroscopic—it pulls moisture from the air.
- What to do:
- Fill a sock or breathable pouch with coarse salt (like rock salt).
- Place it under your seat or in the footwell.
- It helps reduce interior humidity, which can lessen window fogging in damp weather.
- ✅ Bonus: Add a few drops of essential oil for a subtle fresh scent.
