Q: What do you think about the King Airway and do you think Wilderness First Responders should be certified to use them?
I think it is like any of the supraglottic rescue airways. It can work effectively much of the time in practiced hands. It has its pluses and minuses; supporters and detractors.
Learning to place a device like this correctly and predictably takes an instructor with experience, adequate class time and equipment. Most WFR classes don’t have all of these.
This is a piece of equipment rarely necessary for a WFR trained rescuer. To maintain the skill with competence requires regular, periodic practice. Placing one incorrectly can be disastrous. A simpler solution, mouth to mask ventilation, is easier to learn and master and under most circumstances can be at least as effective.
Bottom line: Could be, yes; should be, no. The limited time available in a WFR course are better spent on more relevant and practical topics and skills.