This presentation introduces a smoke reducing life saving system with the following key points: The system aims to reduce excessive smoke from a fire-affected building to save lives and property. It uses equipment like transformers, cables, ventilators, and smoke detectors. When smoke reaches a certain level, the smoke detector will alarm and automatically switch on ventilators to remove smoke. The system works automatically and has advantages like saving lives and property with low maintenance. However, implementation costs are high and it requires more electricity. In conclusion, the system can effectively save many lives and protect property.