Provent is a disposable sticker device for those who are suffering from mild to moderate obstructive sleep apnea.
It is essentially like a sticker device with a valve in the middle of it.
The device is placed nightly on your nostrils. While inhaling in, the air will come in without any resistant. However, while exhaling out, the valve will not open until certain pressure is built up. Therefore, a positive pressure is maintained within your airway to prevent it from collapsing.
It should be noted that the device will not be suitable for those who have central sleep apnea and those who are mouth breathers.