Cigar oasis excel humidifier refill. compatible only with the humidifier of the same reference. if the cellar is open an average of 3 times a week the recharge can last between 6 to 9 months. comes pre - filled with distilled water - the foam block inside has been pre - treated with an anti - fungal agent for complete safety. refill that can be refilled between 4 and 5 times before being changed. dimensions: length x width x height (cm). 15 x 5 x 5.5cm