The Cigar Caddy 8 oz. Humidifier solution is the perfect way to keep your humidity levels right at 70% inside your humidor. This humidifier solution is a pre-mixed solution of water and propylene glycol that self regulates the humidity levels inside your humidor. It is naturally anti-fungal and is perfectly balanced to protect your cigars and provide them with the best environment. When you want the best, settle for nothing than less than Cigar Caddy products.