It's been a while since I encountered this but I recently saw a black material called VANTABLACK. It's is so dark it looks like a black hole.
In the past I have seen orbs or mist (lines) move quickly through a room or from under a chair, etc. I'm not the only person that witnessed it and a friend of mine even felt one whoosh under his chair. I have not seen these in Washington but when I lived in Illinois and North Carolina.
These abnormalities were even darker than VANTABLACK and had a white/yellowish "hairy looking" outline.
Does anyone have any idea what we encountered? Demos, etc?