NEST Fragrances Reed Diffuser- Japanese Black Currant, 5.9 fl oz Reed Diffuser 175 mL / 5.9 Oz. NEST Fragrances Japanese Black Currant Reed Diffuser has the rich essence of Japanese black currant enhanced with Mirabelle plum, kadota fig and sandalwood. The glass vessel are designed to compliment the beauty of its surroundings; the classic shape and modern stripe etching will complement any dcor. The alcohol-free formula releases fragrance slowly and evenly into the air for approximately 90 days.