What is this?

I have seen this around my bedroom and it's small like dust particle. What is it, and how do I get rid of it?

Photos are zoomed in, it really is hard to see with the naked eye.

https://preview.redd.it/v6l47fq7a6jh1.jpg?width=1083&format=pjpg&auto=webp&s=35cbc98648303fb9734838e6467d3aa989e47ff3

https://preview.redd.it/uvy002g7a6jh1.jpg?width=1400&format=pjpg&auto=webp&s=462c1d5148e4f16eadeea7e4396245dc9f1eb1ee