Science gong Fun Crystal Gel is designed to effectively help maintain humidity at 70 percent the super absorbent polymer crystals absorb up to 400 times their weight in fluid. As they lose moisture, they shrink so you know when it's time to refill.

• You can put them into an open jar, a jar with a lid that has holes, or an open sandwich bag.
• 1 scoop of dry crystal after hydrated will humidify up to 2 Cubic Feet. Extra Crystals are for every time to refill humidifiers

Specifications

Common questions