So I had some free time this afternoon, I decided to take a look at the glove box (planning a light mod) and check out the in cabin air filter. I popped the cover off the place where the in cabin air filter lives, and found that it's EMPTY!
I called up the dealership, and they advised me that no early production Canadian Micra's come with an in-cabin air filter, and that the manuals are generic.
See for yourself if this is the case. Meanwhile, I'm going be busy sourcing a suitable aftermarket filter.