Protects 33 cubic feet of enclosed space. Corrugated carton has a built-in indicator that turns from blue to pink to signal when to reactivate. Unit reactivates in any conventional oven.

The silica gel visible through the inspection window will turn from blue, pinkish/orange to clear. Mini Canister: When it becomes clear, place the unit in 300 degree over for at least 3 hours.
Large Canister: When it becomes clear, place the entire unit in 325 degree over for at least 3 hours.
Small, Medium & XL Pack: When it becomes pink, remove silica bag from unit and place the bag in a 240 degree over for at least 3 hours.