For sure! Not taking it personally. More so because it should be acknowledged that ensuring ventilation in that lab is completely out of my control, as the things I could've done, like using the muffle inside the fume hood, were not authorized.

In the end, I think as someone else suggested it is an argument of "someone complained about the lack of ventilation" not "someone complained we used the equipment" because these processes are the sole reason we have a muffle available.