The concentration of the particles in the room is probably pretty small, despite the smell, though the weaker the smell, the lower the concentration. I'm not an expert, but I would guess it would take prolonged exposure to high concentrations in order to be harmful. However, consulting an actual physician would probably be a better option. Their best guess would be much more educated than mine.
I've searched the forums about the smell of burning rubber or electronics coming out from old computers, and many people have said things like: "the PSU or some other component has fried" or "capacitors have blown/leaked".
This kind of scares me!
Because a couple of weeks ago I plugged in an old computer I hadn't been using for a while, and a weird burning rubber/electronic/(maybe chemical?) smell started coming out of the computer. The monitor was still on and it seemed the computer was still functional at this point.
I quickly turned the computer off and took it outside. However, by this point my room had been taken by the smell! I opened the windows to full and aired out my room for about a week, only to return to find that the smell is still there (albeit much fainter).
I tried using a wet rag with water and some mild detergent to clear the smell off the carpet, and it worked to some extent, but there are still traces of the smell in my room.
My main concern though, is this: the strange smell, is it harmful? Like, is a leaking capacitor harmful to your health? Or a fried component?
Thanks in advance for any responses, I apologise if this post went on a bit