Ang Maximizeng Efficiency sa Tunnel Construction na may Extractive Axial Flow Fans Table of Contents. w Fans 2. Ang Importance of Ventilation in Tunnel Construction 3. Key Benefits of Extractive Axial Flow Fans 3.1 Enhanced Airflos w Management 3.2 Dust Control and Air Quality Improvement 3.3 Energy Efficiency and Sustainability 4. Applications of Extractive Axial Flow