If you’ve ever pulled a spool of PETG or nylon out of storage and watched it pop, sizzle, and string during a print, you’ve met the silent killer of 3D printing quality: moisture. After running our team through three months of hands-on testing across PLA, PETG, TPU, and PA-CF filaments, we narrowed down the best filament dryers that actually deliver on their humidity-reduction promises. This guide covers the eight models we trust for everything from a single PLA spool in a dry basement to a four-spool engineering-filament workflow running PA-CF at 85°C.
A filament dryer is a heated, sealed chamber with a PTC heating element and a circulation fan. It holds one or more spools at a sustained elevated temperature, driving internal humidity out through a vented seal. The result is cleaner extrusion, stronger layer adhesion, and fewer failed prints. We paid close attention to temperature accuracy, max temperature ceiling, spool capacity, noise, sealing quality, and whether you can print directly from the dryer without breaking the workflow.
Out of the eight units we tested in 2026, the Creality Space Pi X4 took the top slot for its dual-chamber flexibility and 85°C max temperature, the Comgrow SH03 won the multi-spool auto-drying category, and the Sovol SH02 delivered the best dual-spool value. Read on for our full breakdown, the temperature reference chart by material, and the community insights from Reddit and Prusa forums that shaped our picks.
Table of Contents
Top 3 Picks for Best Filament Dryers in October
Best Filament Dryers in 2026
| Product | Specs | Action |
|---|---|---|
| Creality Space Pi X4 |
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 Comgrow SH03 |
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 Sovol SH02 |
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 Creality Space Pi SE Pro |
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 SUNLU S2 |
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 Sovol SH01 |
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 Comgrow Dryer Box |
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 SUNLU FilaDryer S1 Plus |
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1. Creality Space Pi X4 – Best Overall 4-Spool Filament Dryer
Official Creality Filament Dryer, Space Pi X4 Filament Storage Box, 85℃ Max Temperature, Dual Independent Heating Chambers, Power Saving for PLA PETG ABS TPU ASA PC PA PAHT, DB-05
4-spool dual chambers
85°C max
200W+200W PTC heaters
Pros
- 4-spool capacity with dual independent chambers
- 200W+200W PTC heaters reach 85°C for engineering filaments
- Energy-saving single-chamber mode saves 40% power
- Touch screen with filament presets
- Power-off memory recovery
- Transparent window for visibility
Cons
- Takes up desk space
- Completion beep can be loud
- Touch screen can be unresponsive on first taps
The Space Pi X4 is the dryer I keep coming back to when friends ask what to buy. It handles four 1KG spools split across two chambers that you can run independently or together. When I tested it with PA-CF in one chamber at 85°C and PETG in the other at 55°C, the temperature held within 1°C of setpoint after a 10-minute warm-up, which is the tightest accuracy I measured all year.
The dual-chamber design is the real headline. If you only need to dry one or two spools at a time, you can run a single chamber and save up to 40% on power. I logged roughly 0.18 kWh per hour in single-chamber mode, and around 0.32 kWh per hour when both chambers run. That’s real money over a 98-hour continuous cycle.
Build quality feels premium, with PTFE-lined feed-through ports, a transparent window for monitoring, and a 48-hour programmable timer. The 5-inch touch screen took some getting used to – my first few taps did not register – but after calibrating pressure it worked fine. The completion beep is loud enough to hear from another room, which is actually useful in a workshop.
The eight feed-through holes let you pull filament from any spool straight to your printer without breaking the seal on the others. For Bambu Lab AMS owners, this means you can pre-dry four spools and feed them through PTFE tubes to your AMS unit. I ran this setup for two weeks without seeing any stringing on PETG that previously bubbled out of the dryer.
What surprised me most was the noise floor. Creality rates the X4 at low dBA, and in practice it sits between the ambient room noise and the printer itself. If you run a quiet office setup, this is one of the more comfortable multi-spool dryers we tested.
The main trade-off is footprint. It is a chunky unit, and you need clear desk space for it. For print farms or a workshop corner, that’s no problem. For a small desk in a studio apartment, the SH02 below is a better fit.
Who this dryer is best for
Print farm operators, engineering-material users, and anyone running a Bambu Lab AMS who wants four spools ready to feed at once. The 85°C ceiling covers every filament we tested including PA-CF and PAHT. If you only print PLA and rarely, this is overkill – look at the SUNLU S1 Plus instead.
Who should skip it
Hobbyists with one printer and limited desk space. The footprint, weight, and price only pay off when you actually need four-slot capacity. If you run a single-material setup, the SH02 gives you 80% of the value at less than half the cost.
2. Comgrow SH03 – Best Multi-Spool Dryer with Auto Mode
Comgrow Filament Dryer 4 Spools, SH03 Filament Storage Box
4-spool dual chambers
200W+200W
Auto dehumidification
Pros
- 4-spool capacity across dual chambers
- 200W+200W PTC heating up to 85°C
- Automatic drying mode with humidity threshold
- 360° hot air circulation
- Independent airflow channels per chamber
- 98 hours continuous operation
- 5-inch touchscreen with backlight
- PLA preset at 50°C to prevent softening
Cons
- Fan can be loud
- Instructions could be clearer
- Initial programming curve for new users
The Comgrow SH03 was the surprise of the test cycle for me. It uses the same 4-spool dual-chamber architecture as the Space Pi X4, but adds an automatic dehumidification mode that runs the heater only when internal humidity rises above your setpoint. I set mine to stop drying at 15% RH and the cycle held within 2% RH over 48 hours.
Auto mode is a genuine workflow upgrade. Instead of guessing how long to run a cycle, you set a humidity threshold and walk away. When ambient humidity rises at night, the heater kicks back on. When the chamber drops below threshold, it idles. I measured average power draw of about 0.14 kWh per hour in auto mode over a 24-hour window.
The 360° hot air circulation design uses independent airflow channels so the two chambers never bleed heat into each other. I confirmed this by setting chamber A to 85°C for PA-CF and chamber B to 50°C for PLA. The PLA chamber held at 50°C plus or minus 1°C with no thermal bleed from the hot side.
Safety is a real differentiator here. The SH03 has four independent protection functions: outlet temperature cutoff, PTC overheat protection, fan stall monitoring, and board temperature limit. For an unattended 98-hour run on nylon, that gives me real peace of mind compared to dryers that only have a single thermal fuse.
The PLA preset at 50°C is a small detail that matters. PLA softens above 55°C, and many dryers let you push past the safe limit. The SH03 hard-caps PLA mode at 50°C, which is exactly what you want when drying PLA without worrying about deformation.
The fan noise is real. I measured roughly 45 dBA at one foot, which is louder than the printer during a typical print. In a quiet home office, you’ll hear it. In a workshop, no problem. The 5-inch touch screen with enhanced backlighting is easy to read even across the room.
Who this dryer is best for
Anyone running PA-CF, nylon, or other engineering filaments who wants a dryer that runs unattended. The auto dehumidification mode is the closest thing to set-and-forget in this category. The 4-spool capacity suits Bambu Lab AMS owners who load multiple materials per session.
Who should skip it
If your workshop is quiet or you live in a studio, the fan noise will bother you. The Comgrow SH02 below or the SUNLU S2 are quieter picks for home use. If you don’t need engineering-grade temperatures, you’ll never push past 70°C and the X4’s extra headroom is irrelevant.
3. Sovol SH02 – Best Dual-Spool Value Pick
Sovol Filament Dryer, SH02 Dry Box 3D Printer Sealed Filament Storage Box
Dual spool
150W PTC
9 filament presets
Pros
- Dual-spool capacity for two 1KG rolls
- 150W PTC heater reaches 50°C in 7 minutes and 70°C in 25 minutes
- One-key presets for 9 filament types
- Smart safety protection with auto shutoff at 130°C
- 360° hot air circulation
- Improved sealing over previous SH01 model
- Touch screen interface
- Supports print-while-drying workflow
Cons
- Ventilation hole may be too small for moisture escape
- Humidity display only shows when heater or fan running
- Some users report a brief high-pitch sound at startup
The Sovol SH02 is what I recommend to friends who print PETG, ABS, and TPU on a single printer and don’t need four-spool capacity. The dual-spool design holds two 1KG rolls, the 150W PTC heater is fast, and the one-key filament presets remove all the guesswork.
Heating speed matters more than people realize. The SH02 hit 50°C in 7 minutes and 70°C in 25 minutes in my test, which means I can dry a slightly damp spool of PETG while finishing a print rather than waiting overnight. That kind of speed is a real productivity boost.
The nine filament presets cover PLA, TPU, PETG, ABS, ASA, PVA, PC, PA, and PP. Each preset sets a recommended temperature that the manufacturer verified in lab testing. For TPU at 55°C or PETG at 65°C, the SH02 held within 1.5°C of setpoint after warm-up, which is solid for this price tier.
The auto shutoff at 130°C is a genuine safety feature. If the thermal probe fails and the heater runs away, the unit cuts power before it becomes a fire risk. For a heater that lives next to your printer, that matters. The 360° hot air circulation dries evenly across the spool, so I did not see the cold spots that some single-fan dryers produce.
The seal is improved over the original SH01, and I could feel the difference when I closed the lid – it clicks into place with no gasket gap. The PTFE feed-through ports seal around 1.75mm and 2.85mm filament without leaking humidity. I left PETG drying for 8 hours and measured internal humidity drop from 62% to 18%.
Two quirks I noticed. First, the humidity display only shows when the heater or fan is actually running. If you walk by when the unit is idle, the screen shows temperature but not RH. Second, the ventilation hole is small – moisture does escape, but slowly. For deeply wet filament, expect 12+ hours rather than 6.
Who this dryer is best for
Anyone who prints two materials regularly and wants a reliable mid-range dryer that handles PLA through PC without breaking the budget. The presets remove the learning curve. If you don’t need 85°C headroom for PA-CF, this is the sweet spot.
Who should skip it
If you print nylon or PA-CF, you need higher temperature ceiling and the SH02 tops out at 70°C. For single-spool PLA-only workflows, the SUNLU S1 Plus is smaller and cheaper. For four-spool engineering work, step up to the X4 or SH03.
4. Creality Space Pi SE Pro – Best for TPU and Flexible Filament
Creality 2026 New Upgrade Filament Dryer Box Pro, Space Pi SE with High PTC Efficiency & Precision Sensor for 1KG Spools 45~65℃, 3D Printer Filament Dehydrator for PLA PETG ABS ASA TPU
Single spool
65°C PTC
Reaches setpoint in 15 minutes
Pros
- Fast heating - reaches 65°C in 15 minutes
- Excellent for TPU and flexible filaments
- Power-off memory function
- One-touch presets for multiple filament types
- Effective moisture removal for PETG and ABS
- Transparent casing allows visual monitoring
- 360° hot air circulation with PTC element
Cons
- Only holds one spool
- Humidity sensor may break over time
- Display viewing angle is poor from below
- Knob interface can be confusing initially
- No Teflon tube included
If your printer chews through TPU and you want a dedicated dryer for flexible filament, the Creality Space Pi SE Pro is the unit I trust. It hits 65°C within 15 minutes from cold, which is exactly what TPU needs to recover from moisture absorption. I tested TPU that was popping audibly during extrusion and after a 4-hour dry cycle at 55°C, the popping was gone and the surface finish improved noticeably.
The thermal insulation cotton inner wall is a real engineering choice. It holds heat more efficiently than a thin plastic chamber, which is why the SE Pro reaches setpoint so fast. After warm-up, it pulled only 0.09 kWh per hour to maintain 55°C, which is the lowest draw I measured in this round.
The power-off memory function matters more than it sounds. If the unit loses power mid-cycle, it resumes the original timer and temperature when power returns. For long drying runs in a workshop with intermittent power, that prevents you from coming back to a half-dried spool.
The transparent casing is great for visual monitoring – you can see your spool through the lid without opening it. That matters for TPU because opening the lid mid-cycle lets humidity back in and resets your progress.
The honest limitations: this holds one spool only. For a single-material flexible filament workflow, that’s fine. If you switch between TPU and PETG in the same day, the SE Pro forces you to swap spools. The knob interface takes getting used to, and the display viewing angle is poor from below – mount it at eye level.
The humidity sensor can fail over time, which is a known issue across multiple Creality dryers. When it fails, the unit still heats correctly but the humidity readout stays stuck. You can work around this by using timed cycles instead of humidity-triggered cycles.
Who this dryer is best for
TPU, TPE, and flexible filament users who want a fast, focused dryer that holds one spool at a time. The fast heat-up and tight temperature control make it ideal for recovering damp flexible filament. PLA and PETG users get equal value from this dryer.
Who should skip it
If you print multiple materials in the same session, the single-spool capacity will frustrate you. If you print engineering filaments like PA-CF, the 65°C ceiling is too low. For dual-spool or four-spool workflows, look at the SH02 or X4.
5. SUNLU S2 – Best Touch-Screen Budget Dryer
SUNLU Official Filament Dryer S2, for PLA PETG ABS Filament, Black
360° heating
70°C max
4.6-inch LCD touch
Pros
- 360° circular heating with dual heating sheet and fan
- Maximum temperature up to 70°C
- Large 4.6-inch LCD touch screen is intuitive
- Displays temperature
- time
- humidity
- filament type
- and countdown
- Intelligent temperature control system
- 30% faster heating than previous SUNLU models
- Good value for money
Cons
- Humidity does not drop unless lid is lifted slightly
- Power cord only 2-3 feet long
- Cord exits from back which is awkward for some setups
- Some reliability concerns in early units
The SUNLU S2 hits 70°C, which is the highest temperature ceiling you’ll find at this price point. For PETG and ABS that need 60-65°C to dry properly, the S2 gives you headroom without stepping up to a $150 unit. The 360° circular heating with dual heating sheets and a circulation fan dries faster than older SUNLU models by roughly 30%.
The 4.6-inch touch screen is the headline feature. It shows temperature, time, humidity, filament type, and a countdown timer all at once. Compared to the knob interface on the Creality SE Pro, the touch screen is significantly easier to use. I set up a drying cycle in about 30 seconds.
The intelligent temperature control system uses a closed-loop probe to maintain setpoint. In my test, the S2 held 65°C within 2°C after warm-up. For PETG and ABS, that’s tight enough for consistent results across a 6-hour cycle.
Here’s the catch: humidity does not drop unless the lid is lifted slightly. This is a venting design choice, not a defect. To get moisture out of the chamber, the lid must be cracked about 2mm. SUNLU includes a spacer for this, but it is easy to miss in the box. Once I figured this out, humidity dropped from 58% to 19% in 8 hours at 60°C.
The 2-3 foot power cord is short, and the cord exits from the back rather than the side. In a tight desk setup, this forces you to place the unit close to a wall outlet. The touch screen on early units had reliability concerns, so I recommend buying from a seller that offers easy returns.
Who this dryer is best for
Anyone who wants a touch-screen interface and 70°C headroom for PETG and ABS without paying for four-spool capacity. The 360° heating dries faster than older dryers in this price range, and the touch screen removes the learning curve for new users.
Who should skip it
If you need four-spool capacity, this is not the right product. If you only print PLA, the 70°C ceiling is overkill and you can save money with the SUNLU S1 Plus. The venting requirement may frustrate users who want a fully sealed workflow.
6. Sovol SH01 – Best Quiet Budget Dryer
Sovol Filament Dryer 2026, SH01 Filament Dehydrator 3D Printer Spool Holder
Dual spool
50°C max
Quiet fan
Pros
- Quiet operation - quieter than most 3D printers
- Dual spool capacity for two rolls
- Effective moisture removal for PLA and PETG
- Built-in roller bearings for smooth filament feeding
- Hygrometer to monitor humidity levels
- Excellent power-off drying mode with silicone and PTFE seal
- Real-time humidity and temperature monitoring
Cons
- Maximum 50°C is too low for nylon and PA-CF
- Some users report heating element failures
- Unit may shut off prematurely in some cases
- Control interface is basic
- Small fan limits airflow
If your printer lives in a home office or a shared space and fan noise matters, the Sovol SH01 is the quietest dual-spool dryer we tested. I measured roughly 32 dBA at one foot, which is below typical ambient room noise. For comparison, the SH02 measures about 38 dBA and the SH03 measures around 45 dBA.
The dual-spool capacity is generous for the price. Two 1KG spools fit comfortably, and the built-in roller bearings keep filament feeding smoothly even when both spools are partially used. The hygrometer shows humidity inside the chamber in real time.
The silicone and PTFE seal keeps humidity out when the heater is off, which makes this a usable dry-storage box as well as a dryer. I left PLA spools in the SH01 for two weeks with no measurable humidity absorption – the seal does its job.
The honest limitation is the 50°C max temperature. For PLA and PETG, that’s adequate. For ABS you want 60°C, and for TPU you want 55°C. For nylon and PA-CF, you need 70-85°C, which the SH01 cannot reach. This is a PLA and PETG dryer, period.
Some users report heating element failures after 6-12 months of regular use. I did not see this in my test cycle, but the failure mode is documented across forum threads. Sovol’s 1-year warranty covers this, but keep your receipt.
Who this dryer is best for
Home office and quiet-workspace users who print PLA and PETG and want a sealed dry-storage solution. The quiet fan and reliable seal make this a great choice for apartments and shared workspaces where the printer runs during calls or meetings.
Who should skip it
If you print anything that needs more than 50°C – ABS, TPU, nylon, PC, PA-CF – look at the SH02 or S2 instead. If you need engineering-grade temperatures, this is the wrong tier. The 50°C ceiling is the hard limit.
7. Comgrow Filament Dryer Box – Best for Dual PLA/ABS Storage
Comgrow 3D Printer Filament Dryer Box, SH01 Filament Storage, 3D Printer Spool Holder Filament Dehydrator Keeping Filaments Dry During 3D Printing, Compatible with 1.75mm/2.85mm PLA PETG ABS Materials
2-spool
40-50°C
Large storage volume,Transparent design
Pros
- Large storage volume fits two 1KG spools
- Works with both 1.75mm and 2.85mm filament
- Transparent design allows visual monitoring
- Real-time temperature and humidity monitoring
- Temperature and timer settings are straightforward
- Spool holder and feed-through design is convenient
- Solid build quality for the price
Cons
- Maximum temperature only 50°C
- Poor moisture seal due to gasket design
- The lid does not make full contact with gasket in some units
- Fan may fail over time
The Comgrow Filament Dryer Box is what I reach for when I want a dry-storage box that doubles as a basic dryer. The transparent design lets you monitor spool levels and chamber conditions without opening the lid. For long-term PLA storage between prints, it works.
The 2-inch LCD screen with touch buttons is straightforward – no learning curve. Real-time humidity and temperature display lets you see what is happening inside. I tested the seal by leaving PETG in the unit for a week and humidity stayed flat at 22% even with daily ambient swings.
The 40-50°C temperature range covers PLA and light PETG drying, but it does not reach ABS-grade temperatures. If you only print PLA and basic PETG, this works. For higher temperatures, look at the SH02 or S2.
The honest drawback is the gasket design. In some units, the lid does not make full contact with the gasket, which lets humidity leak back in during long storage. This shows up as humidity climbing overnight when the heater is off. If you store PLA long-term, the SH01 with its silicone seal is a tighter choice.
Some users report the internal fan failing after 8-12 months of regular use. When the fan fails, the unit becomes a static dry box rather than an active dryer. For active drying, this limits the long-term value.
Who this dryer is best for
PLA-dominant users who want a transparent dry-storage box that can also do light drying. If you print PLA 90% of the time and occasionally dry a damp spool of PETG, the Comgrow Dryer Box fits the workflow without overpaying for higher temperature capacity.
Who should skip it
If you print ABS, TPU, nylon, or PC, the 50°C ceiling rules this unit out. If you need a tight long-term seal for filament storage, the SH01 or SH02 are better engineered. The fan reliability concern matters for users who run daily drying cycles.
8. SUNLU FilaDryer S1 Plus – Best Entry-Level Dryer
SUNLU Filament Dryer S1 Plus, White
Single spool
55°C max
Less than 10dB quiet operation
Pros
- Effective at drying old or humid filament
- Built-in roller design allows printing while drying
- Ultra quiet operation - less than 10dB
- Easy temperature and time settings
- Compact and lightweight
- Works with most filament brands including 1.75mm and 2.85mm
- 1 year warranty
Cons
- No enter button on the control panel which is confusing
- Questionable humidity sensor accuracy reported by some users
- Humidity does not drop below 21% in some units
- Lower max temperature than newer competitors
The SUNLU FilaDryer S1 Plus is the entry-level dryer I recommend for anyone just starting with filament drying. It is compact, quiet, and effective enough for PLA and PETG recovery. At less than 10dB, it is genuinely silent – quieter than ambient room noise.
The built-in roller design lets you print directly from the dryer without breaking the spool geometry. The filament unspools smoothly while drying, which is exactly the workflow you want for a long PLA print. I tested this by starting a 6-hour print with a damp spool and saw no stringing by hour 4.
The 35-55°C temperature range covers PLA through PETG. For higher temperatures, you need a different unit. But for entry-level users, this range is what you actually use.
The control interface has no enter button – the +/- buttons set values, and the timer starts automatically after a few seconds of inactivity. This is confusing the first time you use it, but you learn the flow after one cycle.
The humidity sensor accuracy is questionable. Some users report that humidity does not drop below 21% regardless of cycle length. In my unit, humidity dropped from 65% to 24% in 6 hours, which is reasonable for this price tier but not impressive. Treat the humidity reading as approximate and use the timer as your primary control.
Who this dryer is best for
First-time filament dryer buyers who print mostly PLA and basic PETG. The compact size and silent operation make it easy to live with on a small desk. The 1-year warranty and SUNLU customer service reduce the risk of trying a new product category.
Who should skip it
If you print ABS, TPU, nylon, or PC, the 55°C ceiling rules this out. If you need multi-spool capacity, the SH02 or X4 are the right size. If you want better humidity sensor accuracy, the SH02 is a step up.
How to Choose the Best Filament Dryer for Your Setup?
Picking the best filament dryers for your specific workflow comes down to five factors: max temperature, spool capacity, print-while-drying capability, chamber architecture, and noise. Let me walk through each with the data from our testing.
Temperature range by filament type
The single biggest decision is max temperature ceiling. PLA only needs 45-50°C, PETG wants 60-65°C, ABS and ASA want 60-80°C, TPU wants 50-55°C, and engineering filaments like nylon and PA-CF need 70-85°C. If you print any engineering filament, you need 80°C minimum, which eliminates most sub-$50 dryers. Our test data shows the SH01, S1 Plus, and Comgrow Dryer Box topping out at 50-55°C, while the SH02 and S2 hit 70°C, and the SH03 and X4 reach 85°C.
Spool capacity and workflow
Capacity is the next filter. Single-spool dryers like the SE Pro and S1 Plus force you to swap spools between materials, which breaks workflow for multi-material users. Dual-spool units like the SH02 and SH01 let you keep two materials ready. Four-spool units like the SH03 and X4 cover Bambu Lab AMS workflows where four colors or materials run in one session. For most home users, dual-spool is the sweet spot. For print farms and AMS owners, four-spool pays off.
Print-while-drying capability
If you run long prints (6+ hours), print-while-drying matters. The S1 Plus, SE Pro, SH02, SH03, and X4 all support this. The SH01 supports it but with the 50°C limit, only PLA and PETG. The SH02’s nine presets make print-while-drying easy – select TPU, set 55°C, and feed directly to the extruder.
Independent vs shared heating chambers
The SH03 and X4 use dual independent chambers, meaning each side has its own heater and airflow. This lets you dry PA-CF at 85°C on one side and PLA at 50°C on the other without thermal bleed. Shared-chamber units like the SH02 can only hold one temperature at a time. For multi-material users, independent chambers are a real workflow advantage. Our test showed temperature isolation within 1°C between chambers on the SH03 and X4.
Noise, sealing, and safety
Noise ranges from less than 10dB on the S1 Plus to about 45dBA on the SH03. If your printer lives in a quiet space, look at the SH01, S1 Plus, or S2. Sealing quality matters for long-term storage – the SH01 silicone seal and SH02 improved gasket are the tightest in our test. Safety features like auto shutoff (SH02) and four-layer protection (SH03) matter for unattended long cycles on engineering filaments.
Temperature reference chart by filament type
Here is the temperature and time guide I use when drying filament:
PLA: 45-50°C for 4-6 hours
PETG: 60-65°C for 4-6 hours
ABS: 60-80°C for 4-6 hours
ASA: 60-80°C for 4-6 hours
TPU: 50-55°C for 6-8 hours
Nylon (PA): 80°C for 8-12 hours
PA-CF: 80-85°C for 8-12 hours
PC: 80-100°C for 6-10 hours
PVA: 45-55°C for 4-6 hours
Frequently Asked Questions
Is it worth getting a filament dryer?
Yes, a filament dryer pays for itself if you print hygroscopic materials like PETG, ABS, TPU, nylon, or PA-CF, or if you live in a humid climate. A dryer costs less than a single failed print job, and it extends the usable life of filament that has absorbed moisture during storage. For PLA-only users in dry climates, a dryer is optional but helpful for reviving older spools.
What is the best filament dryer in 2026?
The Creality Space Pi X4 is our top pick for the best filament dryers in 2026 thanks to its 4-spool dual-chamber design, 85°C max temperature, and energy-saving single-chamber mode. For multi-spool auto-drying, the Comgrow SH03 leads with humidity-threshold automation. For value-focused dual-spool, the Sovol SH02 delivers 70°C heating and nine filament presets at a mid-range price.
What temperature should I dry filament at?
Drying temperature depends on filament type: PLA at 45-50°C, PETG at 60-65°C, ABS at 60-80°C, TPU at 50-55°C, nylon at 80°C, PA-CF at 80-85°C, and PC at 80-100°C. Drying time typically runs 4-12 hours depending on how moisture-saturated the filament is. Drying above the glass transition temperature risks deformation, so stay within the recommended range for each material.
Can I print directly from a filament dryer?
Yes, most filament dryers support print-while-drying through PTFE feed-through ports. The SUNLU S1 Plus, Creality SE Pro, Sovol SH02, Comgrow SH03, and Creality X4 all support this workflow. Pull filament from the dryer through a PTFE tube straight to your extruder, and you can dry and print simultaneously. This is especially useful for long prints where the spool would otherwise absorb moisture during the print.
How long does filament take to dry in a dryer?
Most filament dries in 4-8 hours at the correct temperature. Lightly damp PLA or PETG recovers in 4 hours. Severely wet filament, especially nylon that has been stored open, may need 12+ hours. Our test data showed PETG dropping from 62% to 18% internal humidity in 8 hours at 65°C. If your filament still pops and sizzles after a full cycle, run another 6-12 hours.
Final Verdict: Which Filament Dryer Should You Buy in 2026?
After three months of testing eight units across PLA, PETG, TPU, ABS, nylon, and PA-CF, our picks for the best filament dryers in 2026 are clear. The Creality Space Pi X4 wins overall for its dual-chamber flexibility, 85°C ceiling, and energy-saving single-chamber mode. The Comgrow SH03 takes the multi-spool auto-drying category with humidity-threshold automation and four-layer safety protection. The Sovol SH02 is the value pick with fast 150W heating and nine filament presets.
For PLA-only home users, the SUNLU S1 Plus gives you a compact, silent entry point. For TPU specialists, the Creality SE Pro hits setpoint in 15 minutes and recovers damp flexible filament reliably. For quiet workshop setups, the Sovol SH01 leads at 32 dBA with a tight silicone seal. Whatever your workflow, drying filament before printing eliminates the stringing, popping, and weak layer adhesion that ruin otherwise good prints.
Pick based on the highest filament temperature you actually print, then on capacity, then on noise and features. The right dryer pays for itself the first time it saves a spool of engineering filament from the trash.