Medical Oxygen Mask Comfortable Silicone Cushions Nasal Face Durable Full CPAP Mask with Headgear. Medical Grade Silicone: Made from durable medical grade silicone material for safe and comfortable long-term use. Reusability: Designed to be reused after autoclaved sterilization for hygiene and cost efficiency. Multiple Size Options: Available in S, M, and L sizes to fit different adult face shapes comfortably. 3-Year Shelf Life: Guaranteed shelf life of 3 years ensuring product stability and reliability. OEM and ODM Services: Full customization options available including customization from samples and designs. ISO 13485 & FDA Certified: Factory holds ISO 13485 and FDA certifications ensuring high quality standards. Optional PEEP Valve: PEEP valve and headgear can be selected as optional accessories for specific needs. Fast Sample Preparation: Sample orders are prepared within 3 days for quick evaluation and testing.