Desiccant Sheets are a resolution for those who are areas of high moisture or high humidity. Due to the high level of moisture cameras that in those areas are at risk of condensation and moisture seepage. Its not a commonly known fact until its too late. Desiccants are a preventative to moisture seepage onto batteries and the internal face of the camera.
The sheets are a gyroscopic substance useful to maintain or induce a state of dryness. They are widely in use among packaging of goods and food, Due to their ability to absorb moisture.
If you have cameras that are in areas of high humidity or moisture its strongly suggested to use desiccants.