That's basically what a duo-neb is: albuterol (salbuterol) and ipratropium. So, yes.

I have similar to duo-neb the generic I take 4 times a day, and at night and first thing in morning I take
budesonide and perforomist that I mix in my nebulizer.

Yes I take both mixed together in my nebuliser. Actorvent and ventolyn

Here is a good comparison study in use of combination nebulizer meds..

http://www.rxmed.com/b.main/b2.pharmaceutical/b...

i want to take copd meds by nebulizer too.... wondering if you live in Ontario Canada as I do and did your Dr / pulmo Dr tell you to do so ? thanks