This type of mask can be found in nebulizers, oxygen machines, oxygen cylinders, oxygen cylinders, and oxygen cylinders. Convenient, clean and safe. The chin is designed for a variety of face types and face sizes. soft vinyl for patient comfort and visual patient assessmentAdjustable nose clip assures comfortable fit Complete. Soft vinyl for patient comfort and visual patient evaluation Adjustable nose clips ensure a comfortable fit. Equipped with 1.9 for M oxygen supply tube, it is easy to carry, safe in material and comfortable to wear. Prevent pollution and make breathing easier. The unique aerosolized medicine cup can be directly put into the body for inhaled medicine. Remove the mask nebulizer cup and insert the nebulizer directly into the nebulizer.Note: 1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. 2. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you! About Shipping: 1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly. 2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. 3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours Hope you have a pleasant shopping experience!