Those look like foam filled humidifiers. Unless you are using propylene glycol all they do is add moisture, very difficult to regulate with those as they do not absorb excess humidity. I would switch to a couple of 1oz tubes of Heartfelt beads(heartfeltindustries.com) or a Puck from Cigarmony.com. The Puck is filled with beads. Both are trouble free and easy to use.
