Review on 🛍️ ESUN 3D Printing Filament Vacuum Storage Bag for Improved Additive Manufacturing Products by Dee Parson

Ordered one to store my filament. The first arrived with a huge crack in the pump, rendering it unusable. I ordered a replacement and it came with a broken pump! However the tear was quite small and the pump was still sucking a bit so I decided to give it a try - if it works I can glue it on with epoxy or super glue, no big deal. However, it didn't work. I tried to inflate the bag for several minutes but to no avail. Then I tried my Dyson vacuum - no luck. In desperation, I tried my shoppyk - it choked, but nothing was pumped out of the pocket. Then I removed my thread, filled the bag with air and closed it. I tried squeezing in hoping the air valve would work (let air out of the bag) but unfortunately it behaves like there is no valve. I don't know if the dehumidifier and humidity indicator are working properly. Conclusion: 2 main components - the pump and the bags do not work. I am also returning the second set. Don't waste your time and money, try another brand.