The Oasis Case Plus+ humidifier uses the same evaporative membrane as the Oasis Plus+ humidifier, providing 50% more daily humidity supply than the Oasis Case humidifier.

This humidifier is designed for use in drier environments where the relative humidity is below 25%. The Oasis Case Plus+ humidifier, like the Oasis Case humidifier, uses two powerful small magnets, which are embedded in the seam of the humidifier, to attach to either a small sticky backed piece of stainless steel or a metal clip (both are provided with the humidifier).

The Oasis Case Plus+ humidifier can be used in woodwind and stringed instrument cases such as clarinet, violin, cello, guitar or mandolin.