Innovative Cooling Air Duct Design: The F3 facial interface features specially designed foam padding with three ventilation channels in the forehead area, working perfectly with the S3 Pro fan. This design delivers excellent airflow while preventing direct air contact with eyes that could cause dryness, and effectively blocks light leakage. Through head strap adjustment, cool air can be directed to various ventilation points, keeping the entire face area cool and comfortable. Ultimate Comfort, Seamless Fit for All Face Shapes: Utilizing a combination of soft silicone and foam padding design, this eliminates the pressure points on cheekbones and forehead common in traditional hard plastic interfaces. The soft silicone provides excellent cushioning and adapts to different face shapes. The initially narrow facial curve naturally expands according to face size, ensuring a perfect fit. Lycra Nose Seal for Light Blocking: The nose bridge area features premium Lycra fabric that's soft, smooth, and breathable, eliminating the discomfort of traditional silicone designs. The open-edge design perfectly adapts to different nose shapes while ensuring effective light blocking. Special consideration has been given to glasses wearers with a structure that prevents the frame from pressing against the light-blocking fabric, ensuring no light leakage. Stepless Adjustment of Face Distance: The interface is equipped with stepless adjustment wheels on both sides, allowing for easy adjustment of the distance between the face cover and the screen, as well as the field of view (FOV), to meet comfort needs and different usage scenarios. Perfect Integration with BOBOVR Ecosystem: Seamlessly compatible with the S3 Pro head strap, providing both comfort and enhanced ventilation. Can be used with the D3 charging dock for convenient charging and storage. This integration allows users to fully experience the convenience of the BOBOVR accessory ecosystem.