Moving things in fresh unused mask

I saw that there were magnetic fibers in the mask. I had heard that when warm water is placed underneath to simulate breath, the fibers seem to come alive. Sounded like a bit of a stretch, so I did it in the school lab with my own equipment. I am still looking for an alternative, less nefarious, explanation. However, so far it is not:
* air currents, they do not move at room temperature
* organic creatures, since they respond to a magnet as metallic
* something that was added after the package was opened

I was thinking maybe the rising heat, but I have only used hot water that doesn't have a lot of steam coming off it.

The first few seconds are a still shot that shows the variety of crud in the new mask. Then it goes live, about 20 seconds after I slid a bowl of warm water underneath. Nothing was touching. There was about an inch of clearance.

The motion stops when the mask returns to room temperature. Seems as if one breathes them in, they would keep moving and continue hooking up with each other.

Can someone confirm it is not nanotech?
Can someone confirm that this won't be the mesothelioma of the 21st century? Just asking.