Dry & Dry" [1 Quart Premium Orange Indicating Silica Gel Desiccant Beads(Industry Standard 3-5 mm) - Rechargeable Silica Gel Beads(2 LBS)

Get this and you won't need to ever buy more again. I use these to keep my filament from getting moisture in them. I check them about once a month and dump them in a bowl, put it in the microwave for about a minute, stir, and keep doing this till they get back to their original color. BE VERY CAREFUL, THEY GET HOT AND WILL STICK TO YOUR FINGERS WHEN YOU GET THEM OUT. It's like having little balls of lava on your finger. Use a spoon to stir them.

I had no real confidence that this would work, but when there was a LOT of moisture condensed on the inside of my phone's camera lenses, I took a shot. I poured a 2 lb jug of these desiccant beads into a gallon Ziploc bag, powered down my phone, threw it in the bag the beads, squeezed the air out, sealed the bag, and left it alone for about 30 hours. Lo and behold, everything is back to normal! It's like I never dropped my phone in the bathtub. I can't believe how lucky I am. I 100% thought I would have to get a new phone. But nope!

Used these in an air fryer for my laser as well as in my Bambu Lab AMS to help keep filament dry with no issues.

I use this in printed dessicant holders in my 3d printer AMS units. It works great. Reusable by baking in the oven for a short time at a low temp (or in the microwave). Not hard to use at all. Perfect size for printed dessicant containers.Affordable and durable.

Recharges super easily. Using it for my 3D printer and will probably buy more.

Refreshing these using a microwave can be hit or miss. From a microwave, if a large porcelain plate isn't used, it seems difficult to dry these back to orange. In a thick glass cup, it will dry it out and you can hear and see the moister boil away but if you use it for the recommended 2 minutes, it can and will most likely crack your class container. The filament dryer doesn't seem to get hot enough to dry these though.

It's simple and very effective. I bought this to keep my 3D printer's AMS dry, and I poured the beads into some printed dessicant holders that are designed to slide into the AMS without removing any filament spools. Overnight the humidity went from 60% to 20% (per the Bambu app). It works.

VERY GOOD