| Features | Specification | Certificate |
| 1. The mask is made of non-toxic polymer synthetic material, does not contain heavy metals, has strong toughness and strength, and is not easy to be damaged or broken. 2. Easy to use, hygienic, safe, and effectively prevent cross-infection. 3. It is directly matched with the existing oxygen inhalation device, which is easy to popularize. 4. The oxygen inhalation and nebulization joints can be switched at will according to the requirements of use. 5. A variety of models are configured to meet the oxygen needs of different groups of people. |
| ISO13485 |
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