OASIS / OH-21 Double Bass Humidifier

Oasis “OH-21 Bass Humidifier” is a bass humidifier utilizing the proprietary material “Humigel? (Highly Absorbent Crystalline Powder)” that transforms moisture into a gel for slow evaporation. It prevents liquid leakage while maintaining optimal humidity inside the double bass case to prevent drying. It is used by suspending it inside the instrument, secured to the f-holes with the included felt.

■Contrabass Humidifier

【Usage Instructions】
1. Open the cap and slowly add water, taking care not to overflow.
2. Securely close the cap.
3. Within minutes, the water inside reacts with the Humigel powder to form a gel, which slowly begins releasing moisture through the central fabric section.
4. Secure it to the f-hole using the included felt pad, hanging it inside the instrument.
5. When moisture evaporates from the Oasis unit and the red fabric section begins to fold over, it's time to refill.
Carefully add water, taking care not to spill the internal gel or crystals. Depending on the environment and dryness level, refilling is typically needed every 3-4 days.