How long does one brick last?

The Xtreme Fresh formula is built for extended performance—typically several weeks of consistent scent before needing replacement. Duration depends on cabin size and ventilation.

Can I hang this or does it need to sit?

The brick works either way. Hang it from a vent clip, tuck it under a seat, or place it in a cup holder—solid construction means no liquid to manage.

Will this stain or damage my interior?

Being a solid brick, there's no risk of leaking or dripping onto upholstery or plastic trim. Keep it away from direct sunlight to preserve scent intensity.