None of which detracts from the point that if someone's clothing catches fire the first thing to do is put it out immediately by getting them to STOP DROP and Roll.
Then, the burns need to be treated, by the application of cool water for 20 mins, without hypothermia being allowed to set in.
Faffing around looking for a fire extinguisher and selecting the most appropriate one, will only let the person suffer more burning, leading to horrific injuries, possible disfigurement and even death.
The original point of this thread was regarding clothing on fire, not a debate about the merits and de merits of various extinguishers. This is symptomatic of a loss of viewpoint. Our profession is about public safety. Not a point scoring exercise regarding the best equipment to provide. Or a sales pitch.
End of rant........ sorry, ............I just don't want to see anyone else burnt unnecessarily.