First I thought these were orbs, then I thought it was just the humidity in the air. After doing much more research I have found videos showing this exact same phenomenon inside peoples homes! In this video, I think this is mostly humidity being reflected by the infrared light, but as for the last capture, definitely an orb spirit!
It seems like these orbs have a destination. They always seem to be traveling in a straight line, so I can only assume they are taking the shortest distance between two points by moving forward and only forward. Some people say these things are inter-dimensional. That may be so, but if so, why don’t they just “warp” from point to point? Where they are coming from and where they are going, I have no idea.