The 2 way extractor fan is designed to powerfully remove stale air while simultaneously introducing fresh air, effectively circulating indoor and outdoor air, and improving living comfort. High-quality Fan Blades Made of durable, wear-resistant, and heat-resistant ABS material, this bathroom extractor fan efficiently introduce fresh air while simultaneously expelling stale air, odors, and moisture. Powerful Motor Strong and stable performance, capable of maintaining effective ventilation even during prolonged use, suitable for various complex environments. Quiet Operation Optimized noise reduction design, the extractor fan operates at a noise level as low as 30 decibels, quiet and undisturbed, allowing you to enjoy fresh air while maintaining a peaceful and comfortable living environment.