It was the cardio room. The last I talked to you, you mentioned that you'd had someone come in and lower the setting. We had noticed it was less before that convo. This was the first time I noticed it going off multiple times a minute. 
At this strength the smell stays on our water bottle for hours after. I just find that so weird. If we don't get a chance to shower right away, it also stays on us for a long time. That just seems strange and very strong. Just trying to give you details for what we are experiencing.