Boveda 72% Rh 2-Way Humidity Control - Restores & Maintains Humidity - All In One Solution For Humidification- Patented Technolo

Why This Boveda: 72% Rh Is For Premiums In Humidifier Cases Made From Porous Materials, Like Wood Or Leather. This Slightly Higher Rh Is Good If You Live In Low Humidity Or High Altitudes. Use One 2.75