Moisture can turn otherwise good filament into inconsistent prints, brittle strands, and unwanted stringing. The right filament dryer helps restore and maintain material quality by combining controlled heat with enclosed storage.
This roundup compares 10 options from SUNLU, Comgrow, and Creality, ranging from compact single-spool units to multi-spool dryers for busy 3D printing setups.
Best 10 Filament Dryers Picks for 2026
Best High-Temperature Control
- 35–70°C temperature range
- 0–99-hour timer and rotating spindle
- Supports 1.75mm, 2.85mm, and 3.00mm filament
Best For: Flexible single-spool drying and printing
Best Two-Spool Value
Comgrow SH01 Filament Dryer Box
- Holds two 1kg spools
- Displays temperature and humidity
- Sealed design for storage and drying
Best For: Multi-spool storage and routine moisture control
Best Compact Fan-Assisted Option
- Built-in fan aids moisture removal
- 35–55°C adjustable temperature
- LCD shows temperature, time, and humidity
Best For: Routine drying of common filaments
Best Two-Spool Performance
Comgrow SH02 Filament Dryer Box
- Dries two 1kg spools at once
- 150W PTC heater with 40–70°C range
- One-key presets for nine filament types
Best For: Fast, high-capacity drying for multi-printer setups
Best for Multi-Printer Setups
- Dries up to four 1 kg spools
- Heats to 70°C with three fans
- Supports multiple filament diameters
Best For: Multi-printer workspaces and high-volume drying
Best for Dual-Material Drying
- Independent dual chambers
- Dries up to four 1 kg spools
- Adjusts from 45°C to 85°C
Best For: Simultaneous drying of different filament types
Best Compact Single-Spool Choice
- Fits most 1 kg spools
- Heats to 65°C in 15 minutes
- Shows humidity and drying time
Best For: Simple single-spool drying at a home workstation
Best Multi-Spool Filament Dryer
- Dries and prints with up to four spools
- Independent dual-chamber temperature control
- Reaches up to 85°C for engineering filaments
Best For: Multi-printer setups and batch drying
Best Touchscreen Filament Dryer
- Holds two 1 kg filament rolls
- 4-inch touchscreen with one-key presets
- 360° heating supports uniform drying
Best For: Convenient two-spool drying and dual-printer feeding
Best Compact Filament Dryer
- Single-spool design for routine drying
- 360° PTC hot-air heating
- 48-hour timer and power-off memory
Best For: Home users drying one spool at a time
Best High-Temperature Control – SUNLU Filament Dryer S2
The SUNLU S2 is one of the more flexible filament dryers for users who want to dry filament and keep it usable during printing. Its adjustable 35–70°C range, continuous spool rotation, and large touch screen support materials including PLA, TPU, PETG, and ABS.
Best For: Makers who want broad material compatibility, high-temperature control, and a dryer that can also serve as a spool holder.
Pros:
- Adjustable temperature from 35–70°C and drying time from 0–99 hours
- Built-in spindle rotates filament for more even drying
- Compatible with 1.75mm, 2.85mm, and 3.00mm filament
- Translucent lid and large touch screen simplify monitoring and setup
Cons:
- It holds one filament spool at a time
- The higher temperature range may be more capability than casual PLA users need
Choose the S2 when adjustable settings and material versatility matter more than multi-spool capacity. It is particularly practical for humid print environments or older filament that needs reviving.
Best Two-Spool Value – Comgrow SH01 Filament Dryer Box
The Comgrow SH01 is a two-spool filament dryer and storage box designed to keep filament dry while printing. It combines a sealed enclosure, temperature and humidity monitoring, and an adjustable 40–50°C range for common PLA, ABS, and related materials.
Best For: Users who want to store or dry two 1kg spools at once and monitor conditions through a simple LCD display.
Pros:
- Large interior accommodates two 1kg spools
- Sealed outlet design helps maintain a dry storage environment
- 2-inch LCD provides real-time temperature and humidity information
- Works with 1.75mm and 2.85mm filament
Cons:
- Maximum temperature is limited to 50°C
- Drying time settings range from 6 to 12 hours
- The sealing hole must be opened during drying to let moisture escape
The SH01 makes sense when capacity and storage are priorities. Its lower temperature ceiling is best suited to routine drying and moisture control rather than demanding high-temperature filament treatment.
Best Compact Fan-Assisted Option – SUNLU S1 Plus Filament Dryer
The SUNLU S1 Plus is a straightforward filament dryer with a built-in fan to help discharge moisture during drying. Its 35–55°C settings, two-inch LCD, and support for several filament diameters make it a practical choice for improving prints affected by stringing, clogging, or poor adhesion.
Best For: Everyday users who want a compact, fan-assisted dryer for common filament types while printing.
Pros:
- Fan design helps speed moisture removal
- Adjustable temperature range of 35–55°C
- Displays temperature, time, and humidity on a 2-inch LCD
- Supports 1.75mm, 2.85mm, and 3.00mm filament
Cons:
- Its maximum temperature is lower than the SUNLU S2 and Comgrow SH02
- The supplied notes do not specify multi-spool capacity
The S1 Plus is a sensible middle ground for routine filament maintenance. Select it for easy monitoring and fan-assisted drying when you primarily use PLA, PETG, ABS, TPU, or similar materials.
Best Two-Spool Performance – Comgrow SH02 Filament Dryer Box
The Comgrow SH02 is a high-capacity filament dryer built for two 1kg spools at the same time. Its 150W PTC heater, 360° hot-air circulation, 40–70°C range, and one-key presets for nine filament types make it the most feature-rich option in this group.
Best For: Multi-printer setups and users who need faster, higher-temperature drying with preset profiles for a broad range of materials.
Pros:
- Dries two 1kg spools simultaneously
- 150W PTC heater reaches 50°C in about 7 minutes and 70°C in about 25 minutes
- One-key settings support nine filament types
- Multiple sealing rings and safety protections support controlled operation
Cons:
- Its larger two-spool design may be more than a single-printer user needs
- The 4.4-pound weight is higher than the supplied weights of the other listed dryers
The SH02 is the strongest choice when speed, capacity, and material presets are central requirements. Its dual-spool layout can save time and space for users running two printers or preparing multiple materials.
Best for Multi-Printer Setups – SUNLU S4 Filament Dryer
The SUNLU S4 is a high-capacity option for filament dryers, holding four 1 kg spools at once. Its 70°C heating, three-fan circulation, and humidity controls make it practical for multi-color projects or feeding several FDM printers.
Best For: Makers running multiple printers or drying several filament spools simultaneously.
Pros:
- Holds four 1 kg spools and supports up to four printers concurrently.
- Heats up to 70°C with three fans for surrounding air circulation.
- Supports common 1.75 mm, 2.85 mm, and 3.0 mm filament diameters.
- Includes humidity-triggered operation and multiple safety measures.
Cons:
- Its larger capacity also means a larger footprint than single-spool dryers.
- Weighing 10.56 pounds, it is less convenient to move frequently.
The S4 stands out when capacity and simultaneous operation matter more than compactness. It is a strong fit for a busy multi-printer workspace.
Best for Dual-Material Drying – Comgrow SH03 Filament Dryer
The Comgrow SH03 is one of the most flexible filament dryers for users who want separate control over different materials. Its two independent chambers can hold up to four 1 kg spools, with separate temperature controls and heating systems.
Best For: Users drying different filament types at the same time and wanting independent chamber controls.
Pros:
- Two independently controlled chambers accommodate up to four 1 kg spools.
- Adjustable 45–85°C temperature range suits materials including PLA, ABS, PETG, TPU, ASA, PA, and PC.
- Automatic mode responds to humidity and enters an energy-saving storage mode.
- Includes temperature, fan, and overheat monitoring protections.
Cons:
- The dual-chamber design may be more functionality than a single-spool user needs.
- The supplied notes do not specify the unit’s overall dimensions or weight.
With independent chambers, automatic drying, and a higher 85°C maximum, the SH03 is particularly versatile. It is best suited to organized, multi-material workflows rather than basic occasional drying.
Best Compact Single-Spool Choice – Creality Space Pi SE
The Creality Space Pi SE is a straightforward filament dryer for standard 1 kg spools. It combines 360° hot-air circulation, a precision humidity display, and adjustable 45–65°C settings in a compact dry-box design that needs no assembly.
Best For: Individual makers who want an easy-to-operate dryer for common 1 kg spools.
Pros:
- Reaches 65°C within 15 minutes according to the supplied specifications.
- Offers adjustable drying temperatures from 45–65°C and times from 0–24 hours.
- Displays real-time humidity and drying hours with a screen and knob control.
- Supports common materials and 1.75 mm or 2.85 mm filament diameters.
Cons:
- Its stated compatibility is for most single 1 kg spools, limiting simultaneous capacity.
- Its 65°C maximum is lower than the maximum temperatures listed for some larger dryers.
- The supplied notes list a six-month warranty.
The Space Pi SE focuses on simple setup and controlled drying rather than high capacity. It is a sensible choice for a typical single-spool printing station.
Best Multi-Spool Filament Dryer – Creality Space Pi X4
The Creality Space Pi X4 is a high-capacity option for users who need filament dryers that can handle several spools and printers at once. Its four-spool design, dual independent heating chambers, and temperature range up to 85°C make it suited to both everyday and engineering filaments.
Best For: Multi-printer setups, batch drying, and users working with higher-temperature materials such as PA, PAHT, PC, and flexible filament.
Pros:
- Dries and feeds up to four spools simultaneously through eight filament holes and PTFE tubing.
- Dual chambers allow two filament types to be dried at different temperatures.
- Dual 200W PTC heaters reach temperatures up to 85°C.
- Single-chamber mode can reduce energy use by up to 40%.
Cons:
- Other brands’ plastic trays should be confirmed heat-resistant before use.
- The four-spool design may be more capacity than a single-printer user needs.
The Space Pi X4 stands out when throughput and material flexibility matter most. It is a particularly practical choice for workshops running multiple printers, provided compatible heat-resistant trays are used.
Best Touchscreen Filament Dryer – Creality Space Pi Plus
The Creality Space Pi Filament Dryer Plus combines two-spool capacity with guided controls, making it one of the more approachable filament dryers for mixed-material workflows. Its 4-inch touchscreen, 360° hot-air circulation, and one-key presets simplify routine drying.
Best For: Users who want touchscreen operation, automatic material presets, and the ability to dry filament for two printers at the same time.
Pros:
- Holds two 1 kg rolls and supports feeding two printers through four filament holes and two PTFE pipes.
- 360° hot-air circulation is designed for uniform heating.
- One-key settings support up to 12 filament types, with manual adjustment from 45°C to 70°C.
- Supports common and composite filaments, including PLA-CF, PETG-CF, and PA-CF.
Cons:
- Its temperature range tops out at 70°C, below the 85°C maximum of the Space Pi X4.
- Two-spool capacity may not suit high-volume multi-printer operations.
Choose the Space Pi Plus if convenient controls and broad material presets are more important than maximum capacity or temperature. The touchscreen and dual-roll design offer a balanced setup for many home and workshop users.
Best Compact Filament Dryer – Creality Space Pi
The Creality Space Pi is a straightforward single-spool choice for users seeking filament dryers with automated controls and broad compatibility. It uses 360° PTC hot-air heating, offers a 48-hour timer, and remembers settings after a power interruption.
Best For: Single-spool drying of common and composite 1.75 mm or 2.85 mm filament in home 3D-printing setups.
Pros:
- 110W PTC heating with a built-in fan circulates hot air around the filament.
- 3.7-inch touchscreen supports Celsius and Fahrenheit settings.
- One-key presets cover up to 12 filament types, with adjustable temperatures from 45°C to 70°C.
- Timer settings run from 0 to 48 hours, and power-off memory retains previous settings.
Cons:
- Designed for one spool, so it lacks the throughput of the two- and four-spool models.
- The maximum temperature is 70°C, which may be limiting for some higher-temperature drying needs.
The Space Pi is a sensible entry point for routine filament maintenance. Its timer, presets, and power-loss memory make it convenient for unattended single-spool drying without adding the capacity of a larger unit.
How We Picked These Filament Dryers
We focused on practical features that affect drying performance and day-to-day usability: temperature range, heating design, spool capacity, chamber layout, controls, storage protection, and compatibility with common materials such as PLA, PETG, ABS, TPU, and nylon. We also considered whether each unit is better suited to occasional drying, continuous feed-through printing, or managing several spools at once.
Because product specifications can vary by revision, confirm the current temperature range, supported spool dimensions, and included accessories before buying.
Quick Comparison
| Type | Best For | What to Look For |
|---|---|---|
| Single-spool dryer | Most home users | Simple controls, compact footprint, reliable heat |
| Dual-spool dryer | Mixed materials or frequent printing | Independent control, clear display, feed-through ports |
| Four-spool dryer | High-volume printing | Capacity, even heating, power management |
| Dry-storage box | Keeping filament ready to print | Sealing, humidity control, spool access |
Key Buying Factors for Filament Dryers
Temperature and Material Support
PLA generally needs gentler heat than nylon or some engineering materials. Choose a model with a useful temperature range and adjustable settings rather than relying only on a high maximum temperature. Excessive heat can deform certain spools or damage sensitive filament.
Capacity and Spool Compatibility
Check whether the chamber fits standard 1 kg spools, larger reels, or multiple spool widths. A four-spool dryer can be convenient, but a compact single-spool model may heat more efficiently and take up less workspace.
Heating and Drying Consistency
PTC heating elements, circulating airflow, and temperature sensors can help distribute heat more evenly. Look for clear controls and a timer so the dryer can run for the period recommended for the material.
Storage and Printing Access
If you plan to print directly from the dryer, verify that it has suitable outlet ports, rollers, and a path that will not add excessive drag. Sealed storage, desiccant compatibility, and a readable humidity display are valuable for keeping filament dry between prints.
Who Should Buy Which Filament Dryers?
Choose a Compact Single-Spool Model If…
You print occasionally, have limited desk space, or mainly need to refresh one spool at a time. These dryers are typically the simplest and most economical option.
Choose a Dual-Spool Dryer If…
You regularly switch materials or want to dry one spool while printing from another. Independent chambers or controls are especially useful when the two filaments require different settings.
Choose a Four-Spool Dryer If…
You run multiple printers, use filament frequently, or prefer preparing several spools in one cycle. Prioritize even heating, sturdy spool support, and manageable power consumption.
Choose a Storage-Focused Box If…
Your main problem is keeping already-dry filament ready for printing. A well-sealed box with humidity control may be more useful than a high-temperature dryer, particularly for moisture-sensitive materials used often.