Medium * The Nasalfit Deluxe Ez Cpap Mask Has A Soft Silicon Cushion Comfortable Forehead Plate With Silicon Pad And A 360 Rotational Elbow Which Are Designed To Increase Comfort Compliance And Mask Stability * Adjustable Headgear Easy To Assemble Cushions And A Lightweight Streamlined Design Help To Ensure Proper Fit And Minimal Leak During Sleep * By Providing A Mask Option Without Headgear A More Cost Effective Option Is Available Based Upon The Reimbursement Schedule * Latex Free