By definition xerostomia is defined as dry mouth resulting from reduced or absent saliva flow.
To simply put it, chronic dry mouth is the part where the definition says absent saliva flow. If that is the case then you can benefit from the XEROS Dry Mouth Pump.
The XEROS1GO is for oral cancer survivors on the go, traveling, riding, walking, working, or exercising. It can be used when sleeping too! It is portable powered by a powerbank.
The XEROS1NP is for oral cancer survivors that need relief when sleeping at night or sitting. It operates off household current using a power adapter.