Premium 2 Gram Rechargeable Silica Gel Desiccant Packets by Dry & Dry. 

These are 2 gram packets of silica gel desiccant in a high quality coated paper that is oil and heat resistant. These packets work best in an air-tight sealed container, and are FDA compliant food grade.

 These packets can be recharged in a microwave or conventional oven. This means they can be continuously redried and reused.  For detailed recharging instructions click here. 

Ten of these packets will comfortably fit in a Bambu Labs AMS unit - five in each of the 2 desiccant slots. These packets can also be used to keep filament dry when storing spools in a Ziploc bag, 5 gallon bucket with air-tight lid, or any other air-tight filament storage system.