| abstract |
The present invention relates to a nose device. In particular, stacked nasal respirators have been described. The stacked nose device is shaped to resist more airflow in the first direction than in the second direction, and includes a laminated airflow register including a flap valve adjacent the flap valve limiting layer, and a fixed layer airflow register to communicate with the nasal cavity of the subject. And an adhesive holdfast layer shaped to make. Also described are methods of using and stacking nose devices. |