AMOLEN Filament Storage Bags Vacuum Kit, Cleaning Drying Sealed 16 Bags with Two Sizes for 3D Printer Filament with Automatic Pumps/Desiccants/Humidity Indicator Cards/Clips, (3DSEAL16)

At first I had a hard time getting it to work and was ready to give up on it but then I got the hang of it. I made to sure the bag was completely sealed and really made sure at the suction area the bag was flat with no creases before applying suction. I’ve had it for about 3 weeks now and the ones I have vacuum sealed are holding up. I'm happy with it.

I purchased the "AMOLEN Filament Storage Bags Vacuum Kit, Cleaning Drying Sealed 16 Bags with Two Sizes for 3D Printer Filament with Automatic Pump" for my 3D filament and I was extremely disappointed. Three of the 16 bags failed to retain their vacuum (18% failure rate) and there were no Humidity Indicator strips included in the package (something other reviewers have mentioned). The Automatic Pump is either severely under powered and/or the valves on the bags are a terrible design as it takes forever for the pump to suck out the air from the smaller single spool bags and even longer for the larger bags. The pump also releases smells of burning plastic when active which is awesome since the pump is also so slow that you get even more fumes with which to fill your workspace. I used an automatic pump from another bag manufacturer and found that it pumped the air out more quickly and with less finagling. It was still slower than pumping the air out of the other brand of bags so I'm leaning towards both the included pump being under powered and the valve on the bags being a poor design. The smaller bags also have a white square label printed on them for describing the contents. This label happens to be at the right height that it also blocks out the label of the spools of filament so that you either have to flip the spool so that the label is displayed through the other side of bag which is semi-opaque or rotate the spool so that it's not obscured by the bag's label but then is at an odd angle. Not a show stopper but another indicator that they didn't test these bags with filament spools. Also the included instructions for the pump mentioned food and clothing storage and nothing about filament showing they adapted this product for filament rather than designing it for filament. Also, I was in a bit of a hurry when ordering these so I didn't see that they only came with two Sealing Clips and only eight Desiccant pouches. Clips are supper cheap so why only include two for 16 bags? The same with the desiccant, why only eight for 16 bags? So irritating. Overall, a pretty poor experience with this kit. At the very least include everything that is promised in the description and don't ship electronics that smell like they're burning when you use them.

Worked decently for the price until the pump stopped working altogether. Vacuum was kind of slow but for the price seemed to be a good deal. A few of the bags appeared to have trouble staying sealed but re-closing them fixed some of it. The pump died after a month and I had to return it.

I quickly learned that my filament would degrade when exposed to air and humidity, so I was looking for an affordable and reusable storage option. I absolutely love vacuum seal bags in the kitchen, so this was an obvious choice. The bags easily fit a spool and the vacuum works well--you just need it seated correctly. Some pumps need pressure, sometimes the suction cup should be warmed with your hand. Once you know how your pump works, it will work every time. I've also been able to reuse the bags. I've opened a stored filament, printed, and put it back in the vacuum bag for storage using the pump and have had no issues. This storage option is a much better value than some temperature/humidity-controlled boxes--and a space saver. Even if I have to buy more bags as these wear out, it's still a better bargain. Once vacuum sealed, you can put the spools back into the box they came in--great if you want to store by color/brand.

I have been storing my open filament in a gasketed covered tote with desiccant inside. I typically use ABS, but have some PLA also and just added nylon. One time using a stored PLA filament, it kept breaking on me. Time to dry up the filament spools, especially since nylon is very hygroscopic. There are two sizes of bags in this kit. The small one will fit one 1kg spool, but when drawing the air out, it draws in to the point the pump cannot finish before the port is inaccessible. The picture shows the difference. The big one might hold 2 spools, not sure, but the best size for me would be a size in the middle of these two. The desiccant bags in the kit might keep a dry spool dry if immediately put in a into the bag with desiccant and evacuated, but they are too small to do any good if your spools have already absorbed moisture. I'll be using desiccant bags, a Sunlu S1 Filadryer to both dry and dispense, and small digital hygrometers in printed hub mounts to keep my filament dry and monitored from now on. During printing the filament is continually absorbing moisture, so the dryer, or a dry box is a good add. I will probably not use the color changing gauges from the kit. There is no information on them, so I do not know if they can they be reset like color changing desiccant, or if they are a disposable. Even if they can be reset, I hate to have to bake them to be reused. If you find your filament breaking like dry uncooked spaghetti, it's time to dry it out. Jim