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  3151, 3150
  Humidity Sponge™ Regenerable/Indicator
  • Meets FDA requirements
  • Bags are certified as Class M3.5 clean room-compatible
  • Compact Size, regenerable bags
 
Starting at $ 44.06
...
Specifications: Bags are guaranteed to retain 16% moisture by weight, typical results are 37% moisture absorption · Each bag measures 3 x 3 x 1/4 inches · Weight is 10 grams 

Humidity Sponge™ Regenerable/Indicator Complete Description

Humidity Sponges™ meet all drying requirements
The latest in drying technology turns any container into a desiccator. Indicator bag particles show when moisture capacity has been reached.

Nontoxic and ideal for clean rooms
Humidity Sponges™ meet FDA (Food and Drug Administration) requirements for use in direct contact with food and drugs. Desiccant (sodium calcium aluminosilicate hydrate) is nontoxic and is a GRAS (Generally Recognized as Safe) material. It is ideal for storing food/pharmaceutical samples, electronics, PC boards, optics, chemicals, and equipment. Outer material is made of DuPont’s Tyvek* breathable, high-density polyethylene. Zero-Dust bags are certified as Class M3.5 (formerly Class 100) clean room compatible.

Retains 16% moisture, guaranteed
Drying capability depends on volume, temperature, and moisture. As a benchmark, one bag will maintain dry conditions in a container with a volume of two gallons (476 cubic inches/7800 cubic centimeters). Bags are guaranteed to retain 16% moisture by weight; typical results are 37% moisture absorption. Each bag measures 3 x 3 x 1/4 inches and weight is 3/8 ounce.

Indicator Humidity Sponges™
Indicator Sponge has one side of clear film and one of white Tyvek*. It contains blues particles which turn pink when the desiccant has reached its moisture capacity and needs to be replaced. Indicator Humidity Sponge™ cannot be regenerated.

Regenerable Humidity Sponges™
Regenerable Sponge has white Tyvek* on both sides and may be regenerated and reused continuously. Regeneration requires heating in an oven at 220°F (104°C). Included in each pack is a Relative Humidity Card which changes from blue to pink to show when bags need to be regenerated.

Control Company Cat. No. 3151 Humidity Sponge™ Regenerable (40/pack)
(infinitely sustainable)

Control Company Cat. No. 3150 Humidity Sponge™ Indicator (40/pack)

*Tyvek is a DuPont registered trademark.

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