Will this damage my vent louvers?

The clip is designed to grip without pinching or cracking plastic fins. Just ensure the slats are fully dry before clipping on, and avoid over-tightening.

How long does the scent last?

Most owners report solid fragrance output for 3–4 weeks of regular driving. Once the scent drops, you can replace it with a fresh unit.

Can I use this on vents in older cars?

Works on any vent with standard horizontal or vertical slats. If your vents have unusual geometry or motorized louvers, test-fit before committing to keep it mounted.