Reporting question for Humidifier - Grover, for Guitar Cases

Humidifier - Grover, for Guitar Cases

Hi, my concern with the Humidifier is; if in case the unit is over saturated with water, and accidentally drips water inside your guitar, how then can i prevent that little moisture, from ruining and clouding varnish of my guitar. Hoping you can enlighten me with my plight.

The green tube houses a sponge that you will need to wring out to insure that water will not get in or on your guitar. Also, some people who use these humidifiers will lay their guitars flat in their cases when they store them. The idea is that if the guitar is stored vertically, there is more of a chance of water getting on your guitar.