As I do have a Air Con certificate and can be considered as an expert (well the employer insurance will cover me) I'll let you tell me better.
Wouldn't dare to. The fact remains it's a box which when running makes the room significantly colder. If noisier. Whether or not that's technically air-con, I've no idea. But if @Howard wants a make-room-cold-box which works, albeit rather noisily and inefficiently, then I'm merely suggesting one of these makes-room-cold-boxes as a possible solution.
Wouldn't dare to. The fact remains it's a box which when running makes the room significantly colder. If noisier. Whether or not that's technically air-con, I've no idea. But if @Howard wants a make-room-cold-box which works, albeit rather noisily and inefficiently, then I'm merely suggesting one of these makes-room-cold-boxes as a possible solution.