> For the complete documentation index, see [llms.txt](https://emotiv.gitbook.io/epoc-x-user-manual/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://emotiv.gitbook.io/epoc-x-user-manual/getting-started/hydrating-the-sensor-felts.md).

# Hydrating the sensor felts

**Hydrating The Sensor Felts**\
\
To hydrate the sensor felts, place them in a glass then add the saline solution and soak. When the sensor felts are fully soaked, remove them from the glass and squeeze out the excess fluid. They are now ready to be inserted into the sensors. 

![](/files/-M50vsHe58IYfSniVT9S)

**Rehydrating the sensor felts while the headset is in use**\
\
If you need to rehydrate the sensor felts while the headset is being worn, you can add saline solution to each individual sensor felt using the opening at the top of each sensor. This feature enables you to continue using the headset and not disturb your session.

![](/files/-M50w4aidORYTKqArHce)


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