Humidification systems should work well and be easy to use, but that's not always the case. The innovative Zederkoff Rectangular Humidification System is a great way to keep your cigars in top-top condition. The unit is filled with beads that work two way to keep your humidor at 70% relative humidity - it not only gives off moisture, but if your humi becomes too humid, it will absorb moisture to keep the box at optimal levels. It can't be any easier to use, as well. Fill the included tray to the fill line with distilled water or a PG solution like Humi-Care Cigar juice, then place the humidifier face down until it has absorbed the liquid. Return the unit to your humidor to ensure that your stash will always be in perfect shape. We use them here in the office and love them. We think you will, too.