INNOKA Ultrasonic Aroma Fragrance Essential Oil Diffuser, 110ml Portable USB Cool Mist Humidifier, Black. Special Return Policy applies on this product Return for refund (original purchase price only, shipping and handling is NOT refundable): 30 days from the Invoice date. Return for replacement: No replacement is offered. 15% restocking fee may apply For more detail, please refer to Special Return Policy. California's Proposition 65 Warning: This product contains chemicals known to cause cancer, birth defects or other reproductive harm.