What has claimed my bedroom as their own?😭

So i noticed aload of mites on my kindle the other night, and on closer inspection found them on literally every surface in my bedroom... Needless to say, i couldn't get out of there quick enough.

I'm just wondering if anyone knows exactly what they are? Dust,mould,grain mites? Or maybe something completely different?. And how on earth I'm going to fumigate the entire contents of my giant loft bedroom 😭😭

These are the clearest photos i have. First & second pictures are on my fitbit charger. The Third is on my inhaler.

Thanks in advance.