1Maximum Efficiency: The five blade fan ensures that air vent fan maximizes airflow and efficiency. Plus, the sealed motor shaft provides reliable protection against moisture damage, ensuring lasting performance. 2High Volume Airflow: 12V extractor fan provides higher airflow while consuming less power. Additionally, its compact size and quiet operation make it an attractive choice for any Rv or small space. 3Long Lasting Durability: Exhaust fan is built to last, with front and rear shaft seals and a wear resistant motor housing. This ensures that it will continue to function reliably for years to come. 4Durable Housing: Air vent fan features a plastic housing that protects against environmental damage, ensuring that it will continue to work effectively even in harsh weather conditions. 5Versatile Installation: With the ability to be installed on any flat surface, exhaust fan is perfect for RVs, boats, or any other small space to improve ventilation in their vehicle or small space.