+ survive time / Survival + emergency / Environ

When fire took place, exit and entrance fire led big or be blocked up,
Must turn into a window sill to wait for the rescue at this time,Because
inhale the excessive thick smoke while waiting for the rescue, Haven't
waited for to rescue and then be fainted by the thick smoke to even suffocate,The people who consequently aim at in the window sill
to be trapped come to carry on the design and can prolong the existence chance.