What Kanberra Gel Does: Kanberra Gel eliminates mold, mildew, bacteria and fungus. It does this in a quite simple way: Open the container and take off the clear plastic lid and Kanberra Gel starts working immediately. Simple air movement over the container begins the process. How Kanberra Gel Does It: At the micro-biotic level, the air itself absorbs the pharmaceutical grade oils. As the air circulates and lands on the source (the mold, mildew, etc.), Kanberra Gel begins neutralizing and eliminating problems, and associated odors, on contact. It does so naturally, with no chemicals. Most importantly, the use of Kanberra Gel acts as a preventive program against these problems for as long as there is Gel in the container. The time from container opening to the point of maximum Kanberra Gel effectiveness depends on the size of the area and the extent of the problem. In addition, the gel will not last forever?it does need to be replaced in order for it continually to offer protection.