How long does one brick last?

Depends on your car's ventilation and how much you drive, but a 200-gram brick typically delivers noticeable fragrance for several weeks. Once scent fades, grab a fresh one.

Will this damage my rearview mirror or interior trim?

The hanging attachment is designed to mount safely on your mirror without adhesive or fasteners. No permanent marks or interior damage — remove it anytime with zero residue.

Can I use this in direct sunlight without it melting?

Solid bricks are more stable than gels in heat, but prolonged direct sun on your dash will speed up scent release. Park in shade when possible or hang it lower where UV exposure is minimal.