The 811 Type Nasal Pillow Mask features a one-piece injection-molded silicone frame with four pillow sizes (XS / S / M / L) and corresponding inter-nostril pitch options, allowing precise fit across a range of facial anatomies. The minimal contact design reduces pressure on the face and accommodates varied sleeping positions without displacement.
A 360° rotatable elbow paired with a flexible silicone tube allows free adjustment of circuit routing. The quiet vent design supports effective CO₂ washout without disrupting sleep. The assembly is straightforward to dismantle and clean, supporting consistent daily maintenance.