Silent Night Cpap full face mask liners - the Cpap accessory that helps you sleep by eliminating the sleep disruptions and discomfort caused by your Cpap machine Soft, breathable Cpap liner absorbs facial oils and moisture and prevents painful blisters, pressure marks and skin irritations Micro Pillow Hygienic Fabric creates a cushion that reduces air leaks and pressure marks and protects your skin from bacteria Secure the liner to your mask with Quick Stick Tabs Each package contains 4 mask liners - a one month supply Silent Night Full Face Mask Liners attach to the mask and have dramatically improved individuals' lives as they help to provide an uninterrupted and comfortable night’s rest. Once opened this product cannot be returned for health reasons.