Long term/maintenance inhaler suggestions.

I use Salbutamol/Ventolin as my rescue inhaler. Right now it's the only one I have.

The cold weather seems to be aggravating things and making attacks more common, and I dont want to overuse it.

Does anyone have any good suggestions for a maintenance inhaler that works good with Salbutamol/Ventolin that's available in Canada?

EDIT: I have an appointment :)