How do I stop an animation triggering for all the objects that share it?

So in the picture attached is my simple door opening and closing script. My issue I'm having is when I copy and paste my door object with the script attached, whenever I trigger one door the ones duplicated before it trigger also. So 1 triggers fine, but 2 triggers 2 and 1, 3 triggers 3 2 and 1, and so on. Hope that made sense. How do I avoid this? I tried turning off the animator component for all doors and then turning the specific door in range back on to trigger the animation but to no avail, I could not get the animation to play at all when I tried that solution.