Tinh dầu thơm xe hơi Gaiac Stone

This refill keeps the scent consistent for weeks, which is exactly what I wanted since I always forget to swap them out. It’s a simple drop-in and the stone soaks up the oil nicely without getting greasy to touch.

The stone itself looks great on my vent, and the scent is subtle enough not to be overwhelming but still keeps the cabin fresh.

I've been using this refill for a few weeks now and the subtle scent lasts much longer than I expected—definitely keeps my car smelling fresh without being overpowering.