SovolFilament Dryer 2025, SH01 Filament Dehydrator 3D Printer Spool Holder with Upgraded Fan, Dry Box for Keeping Filament Dry, Compatible with 1.75mm, 2.85mm PLA PETG TPU ABS

The Sovol SH01 dual filament dryer is a great addition to any 3D printing setup, especially if you're working with multiple printers or moisture-sensitive materials. I previously used a Sunlu S1 dryer, which did the job, but after adding a second printer to my setup, I wanted a solution that could keep up. While a dual dryer isn’t strictly necessary if you primarily print PLA, it becomes very helpful if you regularly print with materials like PETG or TPU—as I do—especially when printing on both machines simultaneously.One of the most surprising things about the SH01 is how quiet it is. I’ve seen a number of reviews claiming it’s loud, but that hasn’t been my experience at all. It’s quieter than both of my printers and significantly quieter than my old Sunlu dryer. There's a faint fan noise, but it's comparable to a laptop fan at idle—barely noticeable.In terms of features, Sovol packed a lot of thoughtful touches into this unit. It includes built-in roller bearings for smooth filament feeding, a hygrometer to monitor humidity levels, and a simple control interface with temperature and timer settings. Compared to the Sunlu (which has fewer controls), the Sovol is more user-friendly when it comes to dialing in your desired settings.The polycarbonate cover has four filament feed openings—two on top for direct drive setups and two on the front for Bowden-style printers. These openings are necessary to let moisture escape and bring humidity down effectively. They come with gasket covers, though I find them more optional than essential. I usually leave them open during use and close them in between to help maintain low humidity levels.It does take a bit of time to heat up—expect around 20 minutes to reach 50°C due to the slightly larger internal volume. But for longer drying sessions (6+ hours), that warm-up time is negligible. In my own testing, I saw the relative humidity drop from 30% to 23% in the first hour and below 20% after about 8 hours.If I had one small request, it would be an additional front opening that allows for quick access—something that doesn’t require threading filament through it. Sometimes I start a print with filament in the dryer, then move it to a printer-mounted spool mid-print, and a quick-access opening would make that easier. It’s a minor inconvenience and likely irrelevant for most dual-dryer users, but worth noting.Final Verdict:The Sovol SH01 is a quiet, efficient, and well-designed filament dryer—especially great for setups using multiple materials or printers. It outperforms my Sunlu S1 in both usability and performance, and I’d definitely recommend it to anyone looking to level up their print quality.

The media could not be loaded. Note this is the first time I've ever used a filament dryer, which after my many, MANY years of using a 3d printer without one, kinda labels me as totally crazytown that I didn't get one sooner.So, during this Christmas I made a bunch of things for my brother and sister. Along the way, I wanted to use some of my very old Sain Smart black TPU for friction fit lids for small containers. Soon as I set it printing, omg pops and crackles galore. It had sat on a shelf in a bag for years and was FULL of moisture. It was so bad off that it was actually leaving holes in the layer lines each time it would pop. I did order some new Sain Smart clear TPU but then I noticed that it too was crackling a bit after several days of use. Not bad enough to foul the prints, but it wasn't my only two spools to do it either. I also had an old-ish spool of ABS+ filament doing the same thing, and a very old spool of Taulman 910 popping the worst I've ever seen a filament crackle . This got me thinking; how many spools of filament do I want to have to get rid of because of moisture, and WHY haven't I gotten a dryer all these years?!So I got the Sovol SH02 with the really slick touchscreen LCD interface and plopped that crackling spool of Sain Smart black TPU into it. Figured out how to work the settings and had it go for a combined total of about 20 hours give or take at 55C. Finally decided to press it into service tonight on some hole plugs for a shelving unit, and am pleasantly surprised to report that while it is still sizzling a bit, it's very faint now, and it's not affecting the printing at all. It's printing beautifully just like it did when it was new. Nice and shiny, no gaps, no pops, no weird warping or layer separation or bed curling or any of that. It's behaving very nicely. I also printed myself a custom filament tensioner for the extruder to better handle TPU (this printer always had problems with feeding TPU) and now I don't even have feed problems anymore. Absolute power! :-)The dryer isn't silent but the noise it does make isn't that bad, it's a soft whirring noise in your background. It's a nice, sleek unit that neatly holds two standard 1KG spools of filament side by side on two roller bearing rails that spin very fluidly. The top has one hole for letting out heated air and water vapor, and also two front facing holes for filament to pass so you can run your filaments through and print while drying. For very long print times with very hygroscopic filaments, this is exactly what you want. And if you're like me and you're keeping filaments around for forever and a day, this just might save you having to throw old ones out due to moisture problems. And the LCD panel lets you quickly choose presets for all the popular filaments (PETG, ABS, TPU, PLA) as well as a bunch of specialty ones like PC, ASA, PVA, PP, and PE. You can easily reset your run time at any time so as to keep going, otherwise it will neatly turn itself off when the timer runs out. Default is 8 hours.Next on my list to try is to de-crap my ancient Taulman 910 which I never even tried to print with, and that old-ish spool of ABS+ which is not only crackling but also actually breaking. Never seen ABS+ do that before, but it's most of a spool unused and I'm no way just going to let that stand. If I can resurrect it, then that's a huge win right there. Otherwise it's just really nice to know that when I have crackling filament, this thing will easily resolve it.There may be better machines out there and cheaper, I wouldn't know. But you can't go wrong with this one. :-)