You seem to be somewhat unhappy with the inhalers you are using, so something that you could look into is switching to ones that don't use propellant. I find that for me, they are nicer to use than the propellant ones. I initially switched for environmental concerns, but now I would be unhappy to switch back, even if they made a propellant one that was good for the environment.

Btw. anyone that wants to try without propellant and gets pushback, play the I care about the environment, and I want to try card. Most people will fold in the face of that argument.

Even the old Intal Spininhalers look easier and they made a nice whizzing sound as the impeller span, but they had to be cleaned regularly as the powder stuck to the moving parts.

The other think I note was the nasal inhalers worked well up to the mid 1990s then became painful. If you have a sore nose duue to hay fever the last thing you want to do in inhale water up your nose. The old inhalers I now guesses used CFCs and were nice to use. The suggestion by my grandmother for hayfever was to inhale salted water up the nose, I only tried that once - it hurt.