Smoke produced by burning out electronics.
1The pollution boys were away smelling factory smoke in Gloucester: A gum factory.'
2There was no factory smoke or dust to mar it, and it lay in great unbroken sheets.
3The very air is not good enough for them: there is too much factory smoke in it.
4Don't the men in your factory smoke?
5A stretch of wooded hills lay before them, shrouded in trailers of mist that hung across the trees like factory smoke.
6Ledford stepped from the factory smoking his own cigarette.