100g Rechargeable Desiccant Pack of 5 - Moisture Absorbing Bag - Desiccant Dehumidifier for Storage Bins and Totes …

These desiccant bags are perfect for keeping my filament dry. I bought a five pack though one bag is more than plenty for a small airtight container like the one I use.

Use these for my liquor cabinet and gun safe. Seem to be heavy duty and good quality. Better than the cheaper disposable ones

The dessicants are used for a closed area that can get musty. Works very well!

It works great no issues here! Might get a few more

Excellent product

12/29/22 To my absolute surprise these actually work really well. So Im about to give the general times and conditions for my testing so take them with a grain of salt. Over the last two weeks about I left three of these outside in separate containers with approximately 200 gallons of volume. One container does not have a weather seal/stripping and the others do. Their stripping covered the contact surfaces around the lid when fully closed(they were designed and market as weather resistant). The temps have ranged from 16 degrees F one night to 52 degrees F another, with varying rain and snow. And yet the indicator on the non sealed containers was only changing from blue to pink. Considering the condition and extreme wetness this desiccant did a great job of keeping everything within dry. The containers (other 2) were still clearly blue on the indicator and did not need to be microwaved to release the moisture and reset the desiccant. Will update if anything major happens.

Plan on buying another in time.

easy to use, reusable, and a good value.

The blue square bled out so its no longer an effective indicator. After several days, this was not full & there was still lots of moisturecondensation.

…over the old style Dessicant packs!!! These can be heated for a couple of minutes in the microwave instead of two hours in the oven.