Teaching mindfulness to students with severe physical disabilities amidst a multitude of support staff

I am having difficulty getting started teaching mindfulness to my students, due to the level of constant chaos and interruption in my classroom. I do not have behavioural issues, but the high physical needs of my students means there is a steady stream of support staff constantly constantly coming in and out of the room to tend to students (which usually necessitates verbal communication which is not very quiet). I think it would be difficult for my students to begin to pay attention to their breath with so much auditory distraction. Staff are not yet on board with mindfulness practice - which may be a key first step. Looking for suggestions!