Oxygen mask is a kind of oxygen therapy device to provide life support for patients with breathing difficulties and hypoxia, and its purpose is to ensure that patients can obtain enough oxygen during treatment, so as to maintain the stability of vital signs. This study introduces the design and use of a utility model oxygen mask, which has the functions of decompression and fixation, can solve the skin injury caused by wearing the mask for a long time, and increase the comfort of patients with oxygen therapy. (吸氧面罩是为呼吸困难、缺氧的患者提供生命支持的一种氧疗装置, 其目的是确保患者在治疗过程中能获取足够的氧气, 进而维持生命体征的平稳。本研究介绍了一款实用新型吸氧面罩的设计和使用方法, 其具备优秀的减压和固定功能, 能有效避免因长时间佩戴面罩所导致的皮肤损伤问题, 增加患者氧疗的舒适度。)