10 Best Filament Dryers for Reliable 3D Printing in 2026

Moisture can turn otherwise good filament into a source of stringing, popping, weak layers, and inconsistent extrusion. The right dryer helps restore damp spools and keeps moisture-sensitive materials ready to print.

We compared 10 filament dryers from Comgrow, SUNLU, and Creality, including compact single-spool units, multi-spool boxes, and higher-temperature models for materials such as nylon, TPU, PETG, and ABS.

Best 10 Filament Dryers Picks for 2026

Best Dual-Spool Value – Comgrow SH01 Filament Dryer Box

The Comgrow SH01 is a practical filament dryer for users who want to store and dry two 1-kilogram spools while printing. Its sealed design, adjustable 40–50°C range, and temperature and humidity display support everyday PLA, ABS, and similar filament storage.

Best For: Home users who need two-spool capacity and simple dry storage during printing.

Pros:

• Stores up to two 1-kilogram spools and supports 1.75mm and 2.85mm filament.
• Adjustable 40–50°C temperature range and 6–12-hour drying time.
• LCD screen provides temperature and humidity monitoring.
• Sealed lid, silicone cable sheath, and Teflon tube help maintain a controlled storage environment.

Cons:

• Its maximum temperature is 50°C, limiting suitability for materials needing higher drying temperatures.
• The work state must appear on the screen or the motherboard shuts down after three minutes.

The SH01 emphasizes capacity and straightforward operation rather than high-temperature drying. It is a sensible choice for routine filament maintenance, especially when keeping two spools ready beside a printer.

Best Easy-Adjust Option – SUNLU Filament Dryer S2

The SUNLU S2 is a versatile filament dryer with a broad 35–70°C temperature range and drying times adjustable from 0 to 99 hours. Its built-in spindle rotates the spool during drying, while the translucent lid lets you check the filament without opening the box.

Best For: Users who want flexible settings, simple touchscreen control, and support for several filament diameters.

Pros:

• Supports 1.75mm, 2.85mm, and 3.00mm filament.
• Adjustable temperature from 35–70°C and drying time from 0–99 hours.
• Built-in spindle continuously rotates the filament for even drying.
• Large touchscreen and translucent lid simplify operation and monitoring.

Cons:

• The supplied information does not specify support for multiple spools at once.
• Its 70°C maximum is lower than some high-temperature filament dryers.

With its wide adjustment range and long timer, the S2 offers more control than basic storage boxes. It is particularly appealing when switching among materials or tailoring drying cycles to different filament conditions.

Best Smart Preset Dryer – Creality Space Pi V2 Filament Dryer

The Creality Space Pi V2 is a filament dryer for users who want higher-temperature drying and quick material selection. It combines 360° hot-air circulation, a 45–70°C manual range, and presets covering common materials including nylon and carbon-fiber blends.

Best For: Makers drying varied filament types who value presets, high-temperature capability, and power-failure recovery.

Pros:

• Reaches up to 75°C and uses a 360° hot-air cycle for uniform heating.
• Offers one-button presets for 12 filament types, including PLA, ABS, PETG, nylon, ASA, and composites.
• 3.7-inch touchscreen displays temperature and drying time in real time.
• Remembers material and temperature settings after a power failure.

Cons:

• The supplied notes specify compatibility with most 1-kilogram spools, rather than multiple-spool capacity.
• Manual temperature adjustment is listed as 45–70°C, despite the 75°C maximum specification.

The Space Pi V2 stands out for guided operation and material coverage. Its presets reduce setup work, while the power-failure memory is useful for longer drying sessions.

Best High-Capacity Performance – Comgrow SH03 Four-Spool Dryer

The Comgrow SH03 is a high-capacity filament dryer built for users who need to dry or store up to four 1-kilogram spools. Its dual independent chambers, separate controls, 45–85°C range, and automatic humidity-based drying make it suited to larger or more varied printing workflows.

Best For: Multi-printer users and advanced makers managing several filament types at the same time.

Pros:

• Holds up to four 1-kilogram spools in two independently controlled chambers.
• Dual 200W PTC heating modules reach up to 85°C and support materials including PLA, ABS, PETG, TPU, ASA, PA, and PC.
• Automatic drying mode responds to internal humidity and enters energy-saving storage mode.
• 360° hot-air circulation, adjustable operation up to 98 hours, and multiple monitoring protections support extended use.

Cons:

• Its larger dual-chamber design is likely more than needed for occasional single-spool drying.
• The supplied notes do not provide complete physical dimensions or finished operating details.

The SH03 is the most capable option in this group for volume and control. Independent chambers let users handle different materials simultaneously, while automatic humidity management can reduce manual monitoring.

Quiet Everyday Dryer – SUNLU S1 Plus

The SUNLU S1 Plus is a practical filament dryer for reducing moisture-related issues such as stringing, clogging, poor adhesion, and layer shifting. Its adjustable settings and print-while-drying design make it a flexible choice for routine desktop 3D printing.

Best For: Home users who want a quiet, broadly compatible dryer for one standard spool.

Pros:

• Adjustable temperature from 35°C to 55°C and drying time from 1 to 99 hours.
• Supports common 1.75 mm, 2.85 mm, and 3.00 mm filament sizes.
• Built-in rollers allow printing while drying, while the LCD shows temperature and time.
• Ultra-quiet operation is rated below 10 dB, and the product includes a one-year warranty.

Cons:

• Its maximum temperature of 55°C may be limiting for some higher-temperature materials.
• The listed capacity is for one spool up to 210 × 85 mm.

The S1 Plus emphasizes convenience, compatibility, and low-noise operation. It is a sensible filament dryer for standard materials and everyday moisture control, but users working with demanding high-temperature filaments may prefer a hotter model.

High-Volume Four-Spool Dryer – Creality Space Pi X4

The Creality Space Pi X4 is a high-capacity filament dryer built for users managing several spools at once. Dual heating chambers, a 200W PTC system, and sealed storage make it suited to larger workloads and ongoing filament protection.

Best For: High-volume printers and users who need to dry or store multiple spools in an organized enclosure.

Pros:

• Holds four standard 1 kg spools or two larger 2 kg spools.
• Uses dual independent 200W heating chambers with temperatures up to 85°C.
• Supports 1.75 mm and 2.85 mm filaments and offers drying settings from common materials through higher-temperature options.
• Silicone-sealed storage helps limit moisture re-absorption, with an illuminated viewing window.

Cons:

• Its larger multi-spool design takes more space than a compact single-spool dryer.
• The supplied notes do not specify a warranty or exact drying-time range.

For users with several active materials, the Space Pi X4 offers substantially more capacity than typical filament dryers. Its dual-chamber layout and sealed storage are especially useful when workflow efficiency and moisture control matter more than compactness.

Preset-Controlled Dual-Spool Dryer – Creality Space Pi Plus

The Creality Space Pi Plus is a dual-spool filament dryer that combines 360° hot-air circulation with guided temperature presets. Its touch display, humidity monitoring, and long timer make it a convenient option for users who want more control than a basic filament dryer provides.

Best For: Two-spool users who value even heating, material presets, and real-time monitoring.

Pros:

• 360° circulating hot air is designed to promote uniform drying.
• 110W PTC heating is described as durable, energy-saving, and more even than a heating pad.
• Offers 12 one-key filament presets plus manual adjustment from 45°C to 70°C.
• Features a 3.7-inch touch screen, humidity monitoring, and a timer adjustable from 0 to 48 hours.

Cons:

• Its 70°C maximum is lower than the 85°C maximum offered by the Space Pi X4.
• It is designed for two spools, so it has less capacity for high-volume workflows.

The Space Pi Plus is a strong middle-ground choice among filament dryers. It offers useful automation and monitoring without the larger four-spool format, although users drying especially demanding materials may want a higher-temperature unit.

Best High-Capacity Pick – SUNLU S4 Filament Dryer

For multi-printer households and color-heavy projects, this filament dryer stands out with room for four 1 kg spools and support for simultaneous feeding. Its 70°C heating, three circulation fans, and humidity controls are designed for consistent drying across common filament types.

Best For: Users drying multiple spools or supplying up to four FDM printers at once.

Pros:

• Holds four 1 kg spools simultaneously.
• Heats up to 70°C with three fans for 360° air circulation.
• Supports 1.75 mm, 2.85 mm, and 3.0 mm filament diameters.
• Includes temperature monitoring, a backup thermal switch, and humidity control.

Cons:

• Its large 18.03-inch-wide footprint requires substantial desk or shelf space.
• At 10.56 pounds, it is less convenient to move than smaller dryers.

The S4 is a strong choice when capacity and multi-printer operation matter more than compactness. Its automated humidity thresholds and safety features add convenience for frequent drying sessions.

Best User-Friendly Option – Creality Space Pi SE Filament Dryer

The Creality Space Pi SE is a straightforward filament dryer for one 1 kg spool, with adjustable temperature and drying time settings. Its display, control knob, humidity monitoring, and insulated chamber make it practical for routine filament preparation.

Best For: Home users who want simple controls and customizable drying cycles for common filament types.

Pros:

• Reaches 65°C within 15 minutes using a PTC heater and circulating fan.
• Offers adjustable temperatures from 45°C to 65°C and drying times from 0 to 24 hours.
• Displays humidity and remaining drying time.
• Works with 1 kg spools and 1.75 mm or 2.85 mm filament.

Cons:

• Holds only one 1 kg spool at a time.
• Its maximum temperature is lower than some dryers that reach 70°C.
• The supplied warranty is listed as six months.

Choose the Space Pi SE if you value accessible controls and flexible presets over high capacity. It covers a broad range of materials, including PLA, PETG, TPU, ABS, ASA, PC, and nylon.

Best Two-Spool Value – Comgrow SH02 Filament Dryer Box

The Comgrow SH02 is a two-spool filament dryer designed for users who want drying and sealed storage in one box. It combines a 150W PTC heater, 360° air circulation, one-touch presets for nine filament types, and multiple sealing points.

Best For: Makers who need to dry two 1 kg spools while feeding one or two printers through PTFE-compatible outlets.

Pros:

• Dries two 1 kg spools simultaneously.
• Reaches 50°C in seven minutes and up to 70°C in 25 minutes.
• Provides one-touch settings for nine filament types.
• Uses sealing rings and includes overheat and fan-failure protection.

Cons:

• Its maximum capacity is half that of four-spool dryers.
• The 98-hour maximum timer may require more setup than shorter preset cycles.
• Its feature set may be more than needed for occasional single-spool drying.

The SH02 is a balanced option for two-printer workflows, especially when moisture protection between prints matters. Its preset controls reduce guesswork, while the sealed design helps limit re-exposure to humidity.

How We Picked the Best Filament Dryers

We evaluated these Filament Dryers by the features that matter during everyday printing: usable temperature range, spool capacity, heating design, drying control, storage capability, and ease of feeding filament while the dryer is running. We also considered whether each model is better suited to occasional moisture recovery, continuous dry storage, or managing several spools in a busy print setup.

Because filament types have different drying requirements, we prioritized clear temperature controls and practical compatibility over headline wattage alone. Product names and specifications can vary by seller or revision, so confirm the current listing before purchase.

Quick Comparison

Type	Best For	What to Look For
Single-spool dryer	Small workspaces and occasional drying	Compact design, simple controls, reliable feeding
Dual-spool dryer	Routine home printing	Independent or flexible spool placement and good visibility
Four-spool dryer	Multiple printers or frequent users	Even airflow, adequate chamber space, and stronger heating
High-temperature dryer	Nylon and other moisture-sensitive materials	Accurate temperature control and suitable maximum heat

Key Buying Factors for Filament Dryers

Temperature Range and Control

PLA generally needs less heat than materials such as ABS, PETG, TPU, or nylon. Choose a model with a temperature range that matches your filament manufacturer’s recommendations, and favor precise controls over an unnecessarily high maximum temperature.

Capacity and Spool Compatibility

Check whether the chamber accepts standard 1-kg spools, larger reels, or multiple spool widths. A compact dryer saves space, while a four-spool model can simplify a multi-printer workflow but may take longer to heat evenly.

Heating and Air Circulation

PTC heating is common in this category. More important than the marketing term is whether heat and airflow reach the entire spool consistently. A lid window, internal circulation, and a stable spool path make the unit easier to monitor and use.

Drying Versus Storage

Some boxes are designed primarily to dry filament; others also provide sealed storage while printing. If your room is humid, look for a lid seal, desiccant compatibility, and a filament outlet that limits exposure after the drying cycle ends.

Who Should Buy Which Filament Dryers?

Choose a compact single-spool model if you have limited space, print mostly PLA or PETG, or want an affordable first dryer. Choose a dual-spool unit if you regularly rotate materials or want one box to support a typical home setup.

Choose a four-spool dryer for several printers, frequent material changes, or a larger filament collection. Choose a higher-temperature model when you routinely print nylon, TPU, ABS, or other materials that demand more careful moisture control. Whichever format you select, follow the filament manufacturer’s time and temperature guidance, and allow freshly dried spools to cool before sealing them for storage.