Does the process of crushing meds allow some of it to get into our system somehow?

Wasn't sure on what thread to post this.
My patients mostly have Gtubes so although there are the liquid forms,other meds still come in tablets. I use the Silent Knight, you know with the plastic pouches where you put the tabs to be crushed. But once I pour the already crushed med into the cup, you cant help but some of the powder escapes into the air right. I try to pour it far from my face as much as I can but still I wonder if I still inhale it anyway in my "immediate breathing space" for lack of a better term. Wondering if anybody else has the same concern?Any thoughts/suggestions are appreciated. Thanks!