I carry both the bottle and the can.
The canned air is not allowed on flights so the bottle rocket is what I carry in my kit bag on travel. It's hard to imagine folk would write a bad review on an air duster. Go figure? I can only guess they are that new generation of folk that don't do or use such things and may have other agendas. Very odd.
Any how at home and office we have canned air for when we need to clean it up a little.