Respiratory Mask Diffuser Structure for Quiet Vent Flow

The patent divides the vent holes into multiple groups (first group and second group) with different orientations. The first group of vent holes is oriented at a first angle relative to the patient interface, while the second group is oriented at a second angle. This segmentation allows each group to handle airflow independently, reducing the harmful effects of air drafts and noise while maintaining effective CO2 removal, thus resolving the contradiction between compact size and noise reduction.

The patent applies different orientations and angles to different groups of vent holes based on their local functional requirements. By orienting the first group at a first angle and the second group at a second angle, each local region of the vent structure is optimized for its specific airflow pattern, allowing the overall system to reduce noise and air drafts while maintaining compact dimensions for patient comfort.

The vent holes are segmented into multiple groups with different orientations, which organizes the complex structure into manageable functional units. This segmentation maintains high CO2 removal efficiency through multiple openings while reducing structural complexity by creating a systematic arrangement that is easier to manufacture and maintain, and less prone to fiber obstruction.

The patent introduces angular orientation as an additional dimension for organizing vent holes. Instead of simply increasing the number of holes in a single plane, the vent holes are distributed across different angles and orientations, effectively utilizing three-dimensional space. This dimensional approach allows for efficient CO2 removal through multiple pathways while maintaining a compact and organized structure that reduces complexity and minimizes the risk of fiber obstruction.