Humidity Sponges™ meet FDA (Food and Drug Administration) requirements for use in direct contact with food and drugs. Desiccant (sodium calcium aluminosilicate hydrate) is non toxic and is a GRAS (Generally Recognised as Safe) material. It is ideal for storing food/pharmaceutical samples, electronics, PC boards, optics, chemicals and equipment. Outer material is made from DuPont’s Tyvek® breathable, high-density polyethylene.

• Drying capability depends on volume, temperature, and moisture
• Bags are guaranteed to retain 16% moisture by weight, typical results are 37% moisture absorption
• Indicator sponge shows when moisture capacity has been reached