SUNLU S1 Plus Filament Dryer
4.7Editor score
Ultra quiet design under 10db
Adjustable temperature range 35 to 55C
Accommodates 1.75mm to 3mm filaments
In this guide
Finding the right 3D Printer Filament Dryer Box is crucial for maintaining consistent print quality. Moisture absorption in filaments leads to clogging and poor adhesion, making a reliable dryer essential for serious makers.
We evaluated ten leading models based on heating speed, capacity, and user feedback. Each option offers unique features like touch screens, multiple spool support, and advanced humidity monitoring to suit different printing needs.
Our detailed review covers every model from budget-friendly options to premium solutions. Prices and availability may change, so verify current listings before purchasing to ensure you get the best deal for your setup.
Top 3 Picks for Best 3D Printer Filament Dryer Box
Creality Space PI Filament Dryer
4.4Editor score
360-degree hot air heating system
One-key settings for 12 filament types
Power-off memory function for settings
SUNLU S4 Filament Dryer Box
4.7Editor score
Handles 4 spools simultaneously
350W PTC heater for fast heating
Triple fans for uniform drying
Top 10 Best 3D Printer Filament Dryer Box in 2026 Compared
The following table provides a side-by-side comparison of all ten models reviewed. Use this to quickly identify capacity, heating technology, and key features to find the perfect match for your workflow.
ProductsSpecificationsEditor scorePrice
Best Budget
Comgrow 3D Printer Filament Dryer Box
Large storage volume for 2 spools
Temperature range 40 to 50C
LCD screen with touch buttons
Compatible with 1.75mm and 2.85mm
4.4Editor score
Editor's Choice
Creality Filament Dryer Box 4 Spools
Holds 4 standard 1kg spools
Dual independent 200W heating chambers
Fast drying up to 85C
Silicone-sealed enclosure for storage
4.6Editor score
Best Premium
Creality Space PI SE Filament Dryer
Upgraded PTC solution with fan
Temperature range 45 to 65C
Countdown timer and humidity monitoring
Heats to 65C within 15 minutes
4.4Editor score
Creality Space PI Filament Dryer
360-degree hot air heating system
One-key settings for 12 filament types
Power-off memory function for settings
Timer function from 0 to 48 hours
4.4Editor score
SUNLU Filament Dryer Box S1 Plus
Fast drying with built-in fan
Visual display for temperature and humidity
Adjustable temperature range 35 to 55C
Maximum capacity 210 by 89 millimeters
4.3Editor score
Polymaker Polydryer Filament Storage Box
Sealed enclosure with desiccant support
Built-in hygrometer for humidity monitoring
Compatible with 1.75mm to 3mm
Supports printing without breaking seal
4.4Editor score
SUNLU 3KG Filament Dryer SP2
Fits larger spools up to 3kg
250W PTC heating element
Detachable dryer and storage base
HD LCD touch screen interface
4.4Editor score
Sovol Filament Dryer SH02 Dry Box
Dual spool filament drying holes
150W PTC fast heater system
One key set for nine filament types
Smart safety protection against overheating
4.3Editor score
SUNLU S4 Filament Dryer Box
Handles 4 spools simultaneously
350W PTC heater for fast heating
Triple fans for uniform drying
Auto humidity control mode available
4.7Editor score
SUNLU S1 Plus Filament Dryer
Ultra quiet design under 10db
Adjustable temperature range 35 to 55C
Accommodates 1.75mm to 3mm filaments
Two rollers inside for easy feeding
4.7Editor score
1. Creality Space PI Filament Dryer – Best Overall 3D Printer Filament Dryer Box
Creality Space PI Filament Dryer
360-degree hot air heating system
One-key settings for 12 filament types
Power-off memory function for settings
Timer function from 0 to 48 hours
The Creality Space PI Filament Dryer stands out as a top choice for 3D printer filament dryer box. It features a unique 360-degree hot air heating system that ensures even drying. The unit holds up to 1 kg spools and includes a 3.7-inch touch screen.
Pros
- 360-degree hot air heating system
- One-key settings for 12 filament types
- Power-off memory function for settings
- Timer function from 0 to 48 hours
- Energy-saving PTC heater
Cons
- Screen size may be small for some
- Initial setup takes time
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Its PTC heater technology sets it apart by offering uniform heating unlike traditional pads. The one-key setting supports twelve filament types including composites. Power-off memory saves settings after outages, and the timer ranges from zero to forty-eight hours.
While the screen is functional, some users may find it smaller than competitors. Initial setup requires careful alignment but pays off in performance. The eco-friendly heater is durable and energy-efficient for long-term use.
This dryer suits those wanting advanced drying control and composite support. It delivers consistent results for high-quality prints. We recommend it for users needing reliability and smart features in a compact design.
Uniform Heating Technology
The 360-degree hot air heating system ensures filament dries evenly without hot spots.
User Convenience
Power-off memory and one-key settings streamline operation for various filament types.
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2. SUNLU S1 Plus Filament Dryer – Best Budget 3D Printer Filament Dryer Box
SUNLU S1 Plus Filament Dryer
Ultra quiet design under 10db
Adjustable temperature range 35 to 55C
Accommodates 1.75mm to 3mm filaments
Two rollers inside for easy feeding
The SUNLU S1 Plus Filament Dryer offers excellent value for budget-conscious users. With an ultra-quiet design under 10db, it avoids disturbing daily activities. The temperature range of 35 to 55C handles common materials like PLA and PETG.
Pros
- Ultra quiet design under 10db
- Adjustable temperature range 35 to 55C
- Accommodates 1.75mm to 3mm filaments
- Two rollers inside for easy feeding
- Large screen LCD monitor
Cons
- Lower maximum temperature than premium models
- No humidity monitoring
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Its large screen LCD monitor displays temperature and time clearly. Two rollers inside the box allow printing while drying. It accommodates filament diameters from 1.75mm to 3mm, ensuring broad compatibility across major brands.
The lower maximum temperature might limit advanced materials like PC or ABS. It also lacks humidity monitoring which some prefer. However, for standard filaments, it delivers effective moisture removal efficiently.
This model is ideal for casual printers or small studios prioritizing quiet operation. It solves wet filament issues at an accessible price. Consider it if you need a simple, reliable dryer without extra complexity.
Quiet Operation
The design ensures less than 10db noise for uninterrupted work environments.
Wide Compatibility
Supports multiple diameters including 1.75mm, 2.85mm, and 3mm filaments.
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3. SUNLU S4 Filament Dryer Box – Best Premium 3D Printer Filament Dryer Box
SUNLU S4 Filament Dryer Box
Handles 4 spools simultaneously
350W PTC heater for fast heating
Triple fans for uniform drying
Auto humidity control mode available
The SUNLU S4 Filament Dryer Box leads with unmatched capacity and speed. It effortlessly handles four 1kg spools at once enabling multi-color printing. The 350W PTC heater achieves target temperatures in just thirty minutes.
Pros
- Handles 4 spools simultaneously
- 350W PTC heater for fast heating
- Triple fans for uniform drying
- Auto humidity control mode available
- Triple security for safety
Cons
- Higher price point
- Larger physical footprint
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Triple fans maintain uniform temperature balance within three degrees across the box. Auto humidity control starts drying when humidity hits thirty percent. Triple-layer security protects users from temperature fluctuations with real-time alerts.
Its high price and size may deter beginners with limited space. However, for multi-machine setups, efficiency gains justify the investment. The advanced control systems ensure consistent drying for demanding projects.
Choose this model for professional workflows needing maximum capacity and speed. It supports up to four printers simultaneously for seamless operation. It is a top-tier solution for serious 3D printing enthusiasts.
Multi-Spool Capacity
Handles 4 spools simultaneously for uninterrupted multi-color printing.
Smart Control
Auto humidity control starts drying at desired range stops at 25%.
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4. SUNLU 3KG Filament Dryer SP2 – Best Large Capacity 3D Printer Filament Dryer Box
SUNLU 3KG Filament Dryer SP2
Fits larger spools up to 3kg
250W PTC heating element
Detachable dryer and storage base
HD LCD touch screen interface
The SUNLU SP2 Filament Dryer excels in accommodating larger spools up to 3kg. This feature reduces refill frequency for high-volume printing. It includes a detachable storage base allowing easy separation after drying.
Pros
- Fits larger spools up to 3kg
- 250W PTC heating element
- Detachable dryer and storage base
- HD LCD touch screen interface
- Excellent sealing performance
Cons
- Requires separate base for storage
- Touch screen sensitivity varies
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A 250W PTC heating element ensures rapid heating to 70C within fifteen minutes. The HD LCD screen displays temperature and humidity clearly. Superior sealing with sliding latches keeps moisture out when not in use.
The need for a base adds weight and cost. Touch screen responsiveness can vary depending on humidity levels. However, the capacity and sealing make it ideal for bulk storage needs.
Recommended for users with large spools needing efficient drying. Its ability to feed directly into printers while drying saves time. Pair it with desiccants for maximum protection during pauses.
Spool Capacity
Accommodates 1kg and 3kg spools with rollers and bars.
Sealing Efficiency
Sliding latches and gaskets provide superior moisture protection.
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5. Creality Space PI SE Filament Dryer – Best Compact 3D Printer Filament Dryer Box
Creality Space PI SE Filament Dryer
Upgraded PTC solution with fan
Temperature range 45 to 65C
Countdown timer and humidity monitoring
Heats to 65C within 15 minutes
The Creality Space PI SE Filament Dryer is perfect for compact setups. It heats quickly to 65C within fifteen minutes using an upgraded PTC solution. The built-in fan circulates hot air evenly for consistent drying.
Pros
- Upgraded PTC solution with fan
- Temperature range 45 to 65C
- Countdown timer and humidity monitoring
- Heats to 65C within 15 minutes
- No assembly required
Cons
- Only fits 1kg spools
- Lower max temperature than others
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Users can track humidity and drying hours via a countdown timer. No assembly is needed allowing immediate use out of the box. It supports filament diameters of 1.75mm to 2.85mm for broad compatibility.
The lower maximum temperature limits use with very high-temperature materials like Polycarbonate. It also only fits standard 1kg spools. Still, it is excellent for common materials like PLA and PETG.
Ideal for home makers needing a simple, fast dryer. Its ease of use and humidity tracking simplify maintenance. Store dried filament in vacuum bags to maintain dryness effectively.
Rapid Heating
Heats to 65C in 15 minutes with 360-degree air circulation.
Real-Time Monitoring
Humidity monitor and countdown timer track drying conditions clearly.
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6. SUNLU Filament Dryer Box S1 Plus – Best Color Variant 3D Printer Filament Dryer Box
SUNLU Filament Dryer Box S1 Plus
Fast drying with built-in fan
Visual display for temperature and humidity
Adjustable temperature range 35 to 55C
Maximum capacity 210 by 89 millimeters
The SUNLU S1 Plus Dryer in Black offers the same performance as the white version. Its built-in fan speeds up water discharge from filaments effectively. The visual display accurately detects temperature time and humidity.
Pros
- Fast drying with built-in fan
- Visual display for temperature and humidity
- Adjustable temperature range 35 to 55C
- Maximum capacity 210 by 89 millimeters
- Wide compatibility with filament brands
Cons
- Limited to lower temperature range
- Design differs from white variant
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Adjustable temperature range goes from 35 to 55C to suit standard materials. It fits 1.75mm to 3mm filaments from most brands. The black finish provides a sleek look for modern workspaces.
The temperature limit is suitable for most consumer filaments but not high-performance ones. Some users prefer the white variant for aesthetics. However functionality remains identical for reliable moisture control.
Choose this model for those needing a stylish dryer with proven performance. It reduces issues like stringing and clogging. Add to cart for quick finding and ensure consistent print results.
Efficient Airflow
Upgraded fan design expels excess moisture rapidly from filaments.
Broad Material Support
Compatible with PLA PETG ABS and TPU materials up to 3mm.
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7. Creality Filament Dryer Box 4 Spools – Best Multi-Spool 3D Printer Filament Dryer Box
Creality Filament Dryer Box 4 Spools
Holds 4 standard 1kg spools
Dual independent 200W heating chambers
Fast drying up to 85C
Silicone-sealed enclosure for storage
The Creality X4 Filament Dryer Box is designed for high-volume users holding 4 spools. Dual heating chambers remove moisture 30% faster than single-chamber dryers. It can reach up to 85C for advanced filaments like ABS.
Pros
- Holds 4 standard 1kg spools
- Dual independent 200W heating chambers
- Fast drying up to 85C
- Silicone-sealed enclosure for storage
- Industry-first drying scene touch UI
Cons
- Higher price for multi-spool capacity
- Larger size than single spool models
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Industry-first touch UI allows precise temperature control for different material types. The silicone-sealed enclosure prevents moisture re-absorption during pauses. Illuminated windows allow monitoring without breaking humidity control.
Cost is higher due to the capacity and dual heating technology. Size requires significant workspace allocation. For studios needing multiple colors, this speed and flexibility are invaluable.
Recommended for users needing efficiency and large storage capacity. It reduces waste by extending shelf life. Ensure ample desk space before purchasing for optimal integration.
Rapid Drying
Dual 200W chambers dry filament 30% faster than single units.
Sealed Storage
Silicone-sealed enclosure ensures filament stays dry 24/7.
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8. Comgrow 3D Printer Filament Dryer Box – Best Value 3D Printer Filament Dryer Box
Comgrow 3D Printer Filament Dryer Box
Large storage volume for 2 spools
Temperature range 40 to 50C
LCD screen with touch buttons
Compatible with 1.75mm and 2.85mm
The Comgrow Filament Dryer Box offers solid value with storage for 2 spools. LCD screen and touch buttons simplify operation for users. It maintains temperatures between 40 to 50C suitable for PLA and ABS.
Pros
- Large storage volume for 2 spools
- Temperature range 40 to 50C
- LCD screen with touch buttons
- Compatible with 1.75mm and 2.85mm
- Sealed hole with plug
Cons
- Limited to lower temperature range
- Motherboard shuts down automatically if not in work mode
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The sealed hole with plug helps retain dryness when not in use. Real-time humidity monitoring helps prevent entanglement and layer issues. It shuts down automatically after 3 minutes if not in work mode.
Limited temperature range restricts use with high-temperature materials. Automatic shutdowns can be a nuisance if settings are missed. Still it offers reliable performance for standard printing needs at a reasonable cost.
This box is great for beginners needing a budget-friendly solution. The touch controls make it easy to set times. Ensure you contact support if error codes appear for quick resolution.
Real-Time Monitoring
LCD screen displays temperature and humidity to prevent print issues.
Efficient Sealing
Silicone cable sheath and plug hole ensure dry environment.
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9. Polymaker Polydryer Filament Storage Box – Best Passive Protection 3D Printer Filament Dryer Box
Polymaker Polydryer Filament Storage Box
Sealed enclosure with desiccant support
Built-in hygrometer for humidity monitoring
Compatible with 1.75mm to 3mm
Supports printing without breaking seal
The Polymaker Polydryer is a passive storage solution rather than an active heater. It uses a sealed enclosure with desiccant support to lock out moisture. A built-in hygrometer allows easy monitoring of humidity conditions.
Pros
- Sealed enclosure with desiccant support
- Built-in hygrometer for humidity monitoring
- Compatible with 1.75mm to 3mm
- Supports printing without breaking seal
- Easy to use design
Cons
- No heating element included
- Requires separate desiccant purchase
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You can feed filament without breaking the seal ensuring consistent protection. Compatible with standard diameters up to 3mm including PA Nylon and TPU. Its simple design fits neatly into workspaces without power needs.
Lack of heating limits its ability to dry wet filament actively. It relies on replacing desiccants for continued moisture control. Best for storage rather than pre-drying wet spools.
Recommended for users who already have drying solutions needing storage. It extends shelf life through controlled environments. Check for desiccant availability and replace regularly for best results.
Moisture Protection
Sealed enclosure reduces exposure to humid air to prevent issues.
Seamless Printing
Feed filament without breaking the sealed setup for better protection.
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10. Sovol SH02 Dry Box – Best Dual Spool 3D Printer Filament Dryer Box
Sovol Filament Dryer SH02 Dry Box
Dual spool filament drying holes
150W PTC fast heater system
One key set for nine filament types
Smart safety protection against overheating
The Sovol SH02 Filament Dryer supports drying two 1KG rolls simultaneously. This dual spool design saves space and allows two printers to run. It reaches 50C within seven minutes using 150W PTC heater.
Pros
- Dual spool filament drying holes
- 150W PTC fast heater system
- One key set for nine filament types
- Smart safety protection against overheating
- Improved sealing over SH01
Cons
- Requires desiccant bags separately
- Initial setup requires adjustment
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Safety features include auto cut-off at 130C and fan alarm. Sealing materials are thicker than SH01 preventing moisture when not powered. One key settings for nine filament types streamline the setup process.
Desiccant bags are required for best efficiency but not included. Users must ensure the fan works properly to avoid damage. For its price, it offers robust protection for multiple printers.
Choose this for multi-printer setups needing efficient drying. Its safety and dual capacity make it versatile for workshops. Confirm desiccant compatibility for maintaining high drying efficiency.
Dual Capacity
Dual holes allow drying for two rolls for different printers.
Safety Features
Auto cut-off and fan alarm prevent overheating damage.
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Buying Guide – How to Choose the Best 3D Printer Filament Dryer Box
Selecting the right dryer involves understanding your printing needs and material types. This guide outlines the most important factors to consider for your specific setup.
Capacity and Spool Size
Capacity varies from single to four spools. Determine how many filaments you need to keep dry simultaneously. Larger capacities reduce refill frequency but require more desk space.
Choose a model that fits your standard spool size to avoid compatibility issues.
Heating Technology
Look for PTC heaters which provide consistent and energy-efficient heating. Some models use pads that may dry unevenly. Check the maximum temperature to ensure it supports high-performance materials.
Fast heating and uniform circulation prevent hot spots and damage to filaments.
Temperature Range
Different materials require specific temperatures. PLA works best at lower ranges like 40 to 50C. ABS or Nylon may need 70C or higher for proper moisture removal.
Verify the model supports the maximum temperature you require for your filaments.
Sealing and Moisture Protection
A good dryer must seal tightly during storage. Look for silicone seals or latch mechanisms that keep humidity out. Desiccant support is also beneficial for long-term storage.
Proper sealing prevents moisture re-absorption after drying is complete.
Monitoring and Display
Real-time monitoring of humidity and temperature helps track drying progress. LCD screens or touch panels simplify adjustments. Some models offer auto humidity control to start and stop based on conditions.
Choose a clear display to avoid guessing when drying is finished.
Safety Features
Safety mechanisms like auto cut-off at high temperatures protect users and equipment. Fan alarms alert to malfunctions. Overheat protection is essential for unattended drying.
Ensure the dryer has reliable safety systems to prevent overheating incidents.
Ease of Use
User-friendly interfaces like one-key settings save time. Some models require assembly while others are ready out of the box. Check the control layout for intuitive adjustments.
Simple operation ensures consistent results without complex procedures.
Size and Footprint
Consider the physical dimensions and your workspace. Large units may need dedicated shelving. Smaller models are portable but may limit capacity.
Measure your available space before purchasing to ensure a perfect fit.
How to Use and Care for Your 3D Printer Filament Dryer Box
Place the filament spool inside the dryer box ensuring the outlet aligns correctly. Set the temperature and time based on your material type. Turn on the device and monitor the display for progress.
After drying, store the filament in a sealed bag or the dryer's storage mode. Keep desiccants fresh by replacing them regularly. This maintains dry conditions between prints.
Clean the interior periodically to remove dust or debris. Check the cables and fans for proper function. Regular maintenance extends the life of the dryer and ensures consistent performance.
Frequently Asked Questions
How often should I dry my filament?
It depends on humidity levels and material. ABS and Nylon absorb moisture quickly so dry them before each print. PLA is less sensitive but benefits from drying if stored in humid areas. Check for signs of bubbling or stringing.
What temperature should I use for drying filament?
Refer to your filament manufacturer guidelines. Generally PLA dries at 40 to 50C while ABS requires 65 to 70C. Exceeding recommended temperatures can damage the material so stay within safe ranges.
Can I use the dryer while printing?
Yes most models allow feeding filament directly into the printer while drying. This prevents moisture from affecting the print. Ensure the tube path is smooth to avoid clogging issues.
Is a heater always necessary?
No passive storage boxes can work with desiccants. However active dryers remove moisture faster and more thoroughly. Use active heating for materials that absorb water easily or for pre-drying old spools.
How do I know when drying is complete?
Check the display for the countdown timer. Most units suggest 4 to 6 hours for standard materials. Listen for any changes in sound which may indicate the fan stopping or finishing.
Can I store filament in the dryer permanently?
Yes many models are designed for both drying and long-term storage. Ensure the seal remains intact. Use desiccants inside to maintain low humidity levels when not powered.
What happens if the dryer shuts off?
Some models auto shut down to save power or for safety. Ensure settings are saved before power loss. Check your manual for power-off memory features that resume settings after restart.
Do all dryers fit 3mm filament?
Most fit 1.75mm and 2.85mm. Only some models support 3mm. Check specifications before buying to ensure compatibility with your filament spool diameter and width.
Final Thoughts on Choosing the Best 3D Printer Filament Dryer Box
The top picks cover various needs from budget options to premium multi-spool solutions. Each offers unique features like humidity monitoring and safety protection. Choose based on your printing volume and materials.
Prioritize capacity and heating speed if you print frequently. For casual use simple models with reliable sealing suffice. Ensure your dryer fits your workspace to avoid clutter.
Always verify current prices and availability before purchasing. Settings may update or change over time. Invest in a quality dryer to protect your filament and ensure consistent print results.