It's a bvm squeezer. Clever solution to the bellows/compressor issues, but limited control over oxygen flow, room air or 100%, and limited control over inspiratory pressure and volume. Both are critical values for anything but short term ventilation. Injured lungs are stiff lungs, and can rupture from excessive pressure or volume. Room air is probably insufficient to maintain saturation, and 100% oxygen can cause damage in several different ways.
Crowd sourcing is a powerful tool for mobilizing innovative solutions to complex problems. It is also how the Royal Navy wound up with a research vessel named Boaty Mcboatface.