Features1Package Included: Equipped with a nasal cover, a headgear, an adapter, and 2 plastic clips, which are complete set for breathing machine. 2Good Sealing: Breathing machine nasal cover can provide strong stability and firmly sealing, creating a comfortable sleeping for you. 3High Flexibility: Elbow adopted 360 degrees flexible rotation, and 45 degrees stereoscopic rotation, reducing the pulling of turning over at night. 4Easy Installation: Breathing machine nose cover set is compact in size and light in weight, stable and portable, which is easy to install and use. 5Excellent PVC: Nose breathing cover set is made of high quality PVC material, without any harmful substances, safe and comfortable to wear.SpecificationItem Type: Breathing Machine Nasal Cover SetMaterial: PVCOperating Temperature: -18 to 40 Storage Relative Humidity: < 95% Storage Temperature: -20 to 60 Package List1 xBreathing Machine Nasal Cover 1 x Headgear 1 x Adapter 2 x Plastic Clips 1 x Instruction