When comes across the fire-alarm,dials 119 warning telephones,then chooses quickly escapes the route.
first should use the wet towel to cover the oronasal first,then flees rapidly from the staircase,do not sit the elevator.
like is unable to flee,may draw back into a room,and so on seals up the crack in a door with the wet towel,prevents the haze to enter.Either prays for rescue or the waiting fire fighters using the balcony to the passer-by arrives.