Hello -
Just received a box of La Gloria Cubana Serie R 2006 Limtada. They came in a very nice Cristiano Humidor. There are 2 humidification devices at the bottom of the humidor that I have not seen before. They are vented, rectangular parts similar to what you see with the green foam material. These are much thinner and have what appears to be a textured or speckled styrofoam material inside, again, much thinner than the green foam.
What is this, and how do I treat it? Do I use water, a water/PG mixture, or what? Am i better off sticking with Drymistat tubes?

tia,
Tom