The SleepWeaver 3D Mask System is the latest cloth nasal mask from Circadiance. The breathable cloth design eliminates fogging common in hard plastic masks while keeping skin dry and comfortable. The brand new flexible elastic interface material creates a stable and reliable seal. Safe for patients who are allergic to silicone or rubber. Features:Soft, light, quiet and easy to fitNo skin irritation from plasticComfortable seal on many face typesDurable, easy to clean and economicalRounded edge headgear reduces strap marksIncluded in Package:Mask WITHOUT headgearCleaning Instructions:Handwash the mask with mild soap and water, air dry. Wash the mask without headgear after every use. * This mask is only effective when used in conjunction with a CPAP/BiLevel machine