Humidors are containers that keep cigars and other tobacco products at the optimal humidity and temperature. They can be made of wood, metal, glass, or plastic, and they come in various sizes and shapes. Humidors are essential for preserving the flavor, aroma, and quality of cigars, as well as preventing them from drying out or getting moldy. Humidors usually have a hygrometer that measures the relative humidity inside the container, and a humidifier that adds moisture to the air. The ideal humidity range for cigars is between 65% and 75%, depending on personal preference and the type of cigar.