50/50 Humidor Solution is pre-made and mixed to exact specifications to activate and regulate your Humidor to 70% - 75% humidity. There is no need to add tap or distilled water. Our 50/50 Humidor Fluid is Naturally Antifungal. The solution is pre-mixed so there is no need add anything else. Fill your humidifier with the 50/50 humidor solution. When your humidifier drys it is time to recharge. Our products are perfect for all humidors. The combination of solutions will regulate the humidity in your humidor at 70 - 75% insuring a "humidor fresh" smoke every time.