Firefighter trainers demonstrate to the workers the correct way to extinguish fire at Saladaeng, Bangkok, Thailand

firefighter trainers fire safety safety demonstrate workers extinguish fire street saladaeng bangkok bkk thailand walkway people flaming hazard preparedness teamwork education spray practice dangerous gas danger extinguisher equipment protective training burn smoke flame safety equipment public hazard outside daytime environment urban asia city caution warning outdoor day real time handheld