The core of the The Heartfelt Humidity-Sheets are made out of the same silica based material that the Heartfelt Beads are made of so the sheets have the same high quality humidification properties as Heartfelt Beads. This core is laminated between two gas permeable sheets, one side is tan in color the other side is gray.
The 9"x9" can be cut to any size you want to fit in the bottom of any container and affords good humidification for many days without recharging. To recharge just place the Humidity-Sheet in your humidor and let it absorb the humidity or spray it lightly with a spray bottle containing distilled water. The sheets are 1/8" thick and are flexible.
Calculating how much you need is easy. Each square inch of Heartfelt Humifity-Sheet conditions approximately 22 cubic inches of space.
