Sewn-in contoured soft-open cell foam pad located at the bony prominences of the heel and elbow

Advanced accuracy technology: Measures five times more data points for consistent

Color-Coded for Convenience: The lead wires come in black

Adjustable handle/ shoulder strap

Quick-release axles allow for tool-free removal of rear wheels for fast hemi-height adjustment

3B Medical Viva Nasal Mask, with Headgear, Large Sold By:1 Each Sewn-in contoured soft-open cell foamViva Nasal mask has revolutionary design assures comfort with minimal facial pressure point. Auto fit: Supporting frame automatically adapts to any forehead. Seal: Excellent sealing in any position. Pad free: Minimal contact with forehead for increased comfort.