Criminal Minds S13E9. Anyone else notice this?

We were out of the country for almost a month and have been catching up on all the shows we recorded.

Criminal Minds S13E9, whenever they were in the interview room there was some kind of dust motes floating around. At first I thought maybe it was supposed to be a delusion the woman was having, but that turned out not to be the case. I’m wondering if it was intentional or there because they were in the desert.

Did anyone else notice this?