iBreath® is a comfortable device reusing the same design than iNAP’s Oral Interface, with same material. The main difference is that the negative pressure port is blocked. 

It has been designed to be used during the day as a Myofunctional training exercise. Wear it for an hour and breathe naturally through your nose. If you want to add more challenge, lay down horizontally on your back and relax, so the gravity will try to pull your tongue back into the airways. iBreath will help you retain it in a forward and upward position against your palate.