| 摘要 |
A nasal respirator contains the case, the fastening appliance, and the filtering material. The case is designed as the bent clamp with the branches tailored from the narrow band. At the end of the clamp, the resilient elements are attached that are bent upwards and inside providing fastening the respirator on the nose. The clamp in its working position is extended to the lower parts of the nasal wings generating the horizontal element in its bottom part with the recess for the filtering material. The nasal respirator is intended for long-term household use as respirator allowing for changing the size of the construction obtaining several standard sizes of the device with the same performance characteristics. The nasal respirator may be used also in medicine as the active non-disposable device for the protection of the respiration via the nose. |
