Old Fella
You are quite right! Apologies in my report which was an over view of the situation and did not go into detail of the emergency actions we took.
This is predominately a PPL piston forum and as such how smoke is dealt with would be different although the Seneca Five twins I flew had plumbed in oxygen.
Apart from oxygen we are pressurised and there is a dump switch which can help clear smoke.
One piston pilot i knew carried a piece of plastic tubing and goggles with the idea that if he had a Carbon monoxide problem or smoke problem he would place the tube in his mouth and dangle it through the pilot little side window breathing fresh air through that and using the swimming goggles to protect his eyes
Pace