Boveda Large Humidipak 65% 6 Pack Individually packaged Large Boveda 65% pouch contains 60g of moisture control gel. 2-way humidity control, accuracy of +/-2% RH. Protects against growth of bacteria, mold or mildew Preserve your medicinal herb, flowers, and cigars. Curing and storage of your herbs and tobacco can only be preserved properly when humidity is controlled. Guaranteed constant level of humidity. Lasts 3 months in most humidors. In ideal air tight conditions Boveda packs work for longer then one year. Excellent storage for: herb, tobacco, brown sugar, meat jerky, dried fruit, tea, curing meat, wedding dress & other garments.