How long does one brick last?

One 200-gram brick releases scent gradually and typically lasts several weeks depending on how often you drive and your interior temperature. Warmer cabins accelerate the release.

Where should I place this in my car?

Cup holder, door pocket, or under the seat all work well. Keep it away from direct sunlight and heat vents for even, controlled fragrance release.

Will this stain or leave residue on my interior?

Gel brick stays solid and won't leak or transfer color if placed on fabric or plastic. If you want extra protection, use a small dish or coaster underneath.