When all combustibles in the space reach or exceed their auto ignition temperature and there is sufficient oxygen available what occurs?

When all combustibles in a space reach or exceed their auto-ignition temperature and sufficient oxygen is present, a spontaneous combustion reaction occurs. This leads to a rapid increase in temperature and pressure, resulting in a fire or explosion. The reaction is fueled by the combustion of the available materials, which can spread rapidly if not contained. This situation poses significant safety hazards and requires immediate attention to prevent catastrophic outcomes.