This video shows an actual first time user determine how to discharge an Element fire extinguisher using nothing more than the images printed on the unit.
Shot in one take and in real-time, the person in the video had no product knowledge and was only told that it was a fire extinguisher and that they needed to figure out how to get it started.
Even with no product knowledge the time required to use an Element, even for a total novice, is very rapid.