There are four main components of your iNAP and each of them need to be assembled together snugly to create an airtight chain:
- the console (bottom part of iNAP): this is where the battery and the negative pressure pump are
- the saliva container
- the tube
- the oral interface
Make sure that all the connections between each component are clean, free of debris, not damaged and tight. A good test to detect any leak is to wear the iNAP device without turning it on. Suck on the oral interface in order to create a negative pressure in your mouth (you can feel it when your tongue is pulled forward). Stop sucking and see if you can keep the negative pressure in your mouth. If you can't, this means that there's a leak somewhere in the chain.
Another sign of leakage is that the blue light keeps flashing and you can hear the pump running, even though you use the oral interface properly and your mouth is closed.
For troubleshooting tips in case of leakage, please read this article: