How to store face masks

People usually store face masks in the refrigerator, but

I didn't like storing it in the refrigerator because there was a huge temperature difference with my hot face in the summer.

So, I just store it at room temperature.

If your face is very sensitive, it feels sufficiently cool even when stored at room temperature.

And I'm sure there are some of you who store them upright.

Because the pack ampoule all gathers at the end, I store it lying down.