Item as described.
Fast shipping to usa
Keep your 3D printer filaments fresh with a food-grade vacuum storage bag featuring a USB rechargeable electric pump, triple moisture protection, and a humidity indicator.
Crafted from FDA-certified 0.09mm thick PE+PA composite film, this vacuum bag is food-grade, eco-friendly, and reusable, ideal for protecting your valuable 3D printer filaments from environmental damage.
Featuring a triple protection mechanism, the bag uses a double-seal zipper, embossed texture design, and a micro-porous air drainage structure to achieve three times the moisture and dust resistance compared to standard food bags.
Designed specifically to accommodate common 3D printer filament spools weighing 0.5kg, 0.75kg, or 1kg and diameters of 1.75mm, 2.85mm, and 3mm, compatible with 99.99% of mainstream 3D printers.
Equipped with a USB rechargeable electric pump delivering 50-60 KPa power, vacuum sealing is completed in just 30 seconds. A manual pump option is also available for convenience and flexibility.
The patented blue indicator window on the bag enables you to visually check the humidity level inside without opening the bag, ensuring optimal filament storage conditions at all times.
They are made of 0.09mm thick food-grade PE+PA composite film certified by the FDA, ensuring safety and reusability.
The bag size is 30cm x 34cm, designed to fit single 1kg filament spools of 1.75mm, 2.85mm, and 3mm diameters.
Place the filament flat in the bag, seal the zipper to the second notch, insert the blue vent hole, and activate the electric pump for 30 seconds or manual pump for 60 seconds.
Yes, the electric air pump is USB rechargeable, with a power rating of 5V/3W and can achieve vacuum in 30 seconds.
It features a triple protection system with a double-seal zipper, embossed texture design, and micro-porous air drainage, offering 3 times more moisture and dust resistance than regular food bags.
Yes, the patented blue indicator window allows you to monitor the humidity level visually without opening the bag.
The vacuum bag is resistant to temperatures from -20℃ up to 100℃.
Some kits include a manual pump made from PP and ABS, sized 4×14cm, which takes 60 seconds to vacuum seal.
Yes, kits vary from basic sets with vacuum bags and sealing clips to professional sets that include both manual and electric pumps plus humidity indicator cards.
Yes, tearing the blue security patch invalidates the vacuum function and should be avoided.
Item as described.
Fast shipping to usa
I liked it, although the electric pump is a bit slow.
Very impressed with these. I got the manual version, and at first i thought the product was defective, but after messing with it for about 20 minutes and ruining one bag i figured out the proper angle i was surprised by how well it works. Bags have been holding vacuum for 2 weeks now.
Tip1: get the automatic pump.
Tip2: you do not need to peel anything from the bag like some reviewers mentioned. It may look like the pump slot on the bag is sealed shut, but that's jsut the design of the valve.
Tip3: when using manual pump, you know you are doing it right when you feel *some* resistance on the pull. Too much resistance means you are vacuuming against plastic and not the valve. Too little or no resistance means you are not sealing the pump against the valve. The sweet spot is somewhere in the middle.
Tip4: the bag will not start visibly shrinking until at least after 20 pumps, and will easily take 3-4x more to give a good vacuum for storage.
The perferations for the seal don't line up properly preventing the vacuum from working properly. returning the product is more of a hassle than the item is worth. avoid this vendor.
Seals well and gets the job done. item as advertised. fits standard 1kg spools although the larger sunlu filament spools only just fit.