Black Orchid. The Mr&Mrs Fragrance Niki car air freshener celebrates the good life and unmistakable Italian style. It combines aesthetics and functionality in a premium, refillable product. The refill cartridge is made of porous, non-toxic EVA (rubber), infused with a fragrance oil containing active odor-absorbing molecules, which, when in contact with the air coming from the car’s air vent, releases a pleasant scent for up to 30 days. Once depleted, the refill can be easily replaced with the same or a different fragrance.