10 Best Filament Dryers for TPU in 2026: Top Picks for Reliable 3D Printing

TPU absorbs moisture quickly, which can lead to stringing, popping, inconsistent extrusion, and weak prints. A suitable filament dryer helps restore damp flexible filament and keeps it ready for smoother, more dependable printing.

We compared 10 filament dryers from Creality, SUNLU, Sovol, Comgrow, and Polymaker, focusing on temperature range, spool capacity, heating performance, controls, and storage features.

Best 10 Filament Dryer for Tpu Picks for 2026

Best Overall – Creality Space Pi SE

If you need a versatile filament dryer for TPU, the Creality Space Pi SE combines adjustable heat, circulating airflow, and real-time monitoring in a straightforward 1KG-spool design. Its 45–65°C temperature range and up-to-24-hour timer let you tailor drying to TPU and other common filaments.

Best For: Makers seeking an easy-to-use dryer for one standard spool and multiple filament types.

Pros:

• Heats to 65°C within 15 minutes, according to the supplied specifications.
• Built-in fan circulates warm air through the chamber for more even heating.
• Supports 1.75mm and 2.85mm filament, including TPU, PLA, PETG, ABS, ASA, and more.
• Offers live humidity monitoring and a 0–24-hour countdown timer.

Cons:

• Temperature tops out at 65°C, which is lower than some engineering-filament dryers.
• Designed for most 1KG spools rather than multi-spool drying.

For most TPU users, the Space Pi SE offers a practical balance of control, airflow, and compatibility. Its insulated chamber and simple knob-and-screen interface make it a strong everyday choice.

Best User-Friendly Option – SUNLU Filament Dryer S2

The SUNLU S2 is a convenient filament dryer for TPU that can dry filament while it feeds to a printer. Its large touch screen, 35–70°C range, and adjustable 0–99-hour timer provide flexible control for TPU and other materials.

Best For: Users who want a roomy dryer with simple touch controls and in-use filament drying.

Pros:

• Adjustable temperature from 35°C to 70°C and drying time from 0 to 99 hours.
• Built-in spindle continuously rotates the spool for even drying.
• Supports 1.75mm, 2.85mm, and 3.00mm filaments.
• Translucent lid allows you to check the spool without opening the dryer.

Cons:

• The supplied information does not specify an internal humidity readout.
• Its maximum temperature is 70°C, so it may be less suited to higher-temperature engineering materials.

The S2 stands out for usability and flexibility. Its extended timer and spool-rotation system are particularly helpful when reviving damp TPU or printing in a humid location.

Best High-Capacity Pick – Creality Space Pi X4

For multiple printers or demanding materials, the Creality Space Pi X4 is a high-capacity filament dryer for TPU with four-spool drying and printing. Dual independent chambers can run different temperatures, while the 85°C maximum is designed for materials such as PA, PAHT, and PC as well as TPU.

Best For: Print farms and multi-printer setups that need simultaneous drying and feeding.

Pros:

• Dries and prints from up to four spools at once.
• Dual chambers have independent PTC heaters and temperature control.
• Reaches up to 85°C for a broader range of engineering filaments.
• Single-chamber mode can save up to 40% energy, according to the supplied notes.

Cons:

• Its four-spool capacity may be unnecessary for a single-printer workspace.
• The supplied guidance recommends checking that third-party plastic trays are heat resistant.

The Space Pi X4 is the most capable option here for throughput and material flexibility. Choose it when independent chamber control and four-spool operation justify a larger, more specialized dryer.

Best Sealed-Storage Design – Sovol SH01 Filament Dryer

The Sovol SH01 is a practical filament dryer for TPU that emphasizes sealed storage as well as drying. It provides real-time temperature and humidity readings, fan-assisted heating, and space for either two narrower spools or one wider spool.

Best For: Users who want to dry filament and protect it from moisture between printing sessions.

Pros:

• Displays internal temperature and humidity in real time.
• Silicone and PTFE seals support power-off filament storage.
• Built-in fan promotes more even heating.
• Can hold two spools under 70mm wide or one spool under 150mm wide.

Cons:

• Temperature settings are limited to 40°C, 45°C, and 50°C.
• Drying time settings range from 6 to 12 hours rather than offering a continuous timer.
• Desiccant bags are not included.

The SH01 is a good fit when sealed storage matters as much as active drying. Its lower temperature ceiling and limited presets make it less flexible than the other options, but its monitoring and storage features are useful for TPU maintenance.

Best for Easy Setup – SUNLU S4 Filament Dryer

If you need a filament dryer for TPU and several other materials, the SUNLU S4 is built for high-volume setups. Its four-spool capacity, heating up to 70°C, and three-fan circulation make it suited to drying multiple rolls at once.

Best For: Multi-printer users and makers who need to dry up to four 1 kg spools simultaneously.

Pros:

• Holds four 1 kg spools and supports 1.75 mm, 2.85 mm, and 3.0 mm filament.
• Heats up to 70°C with three fans for more even circulation.
• Includes humidity control and multiple temperature-safety features.

Cons:

• Its large 18.03 x 8.58 x 12.28-inch size requires substantial workspace.
• At 10.56 pounds, it is less convenient to move than smaller dryers.

The S4 is the strongest choice here for throughput. Choose it if you regularly run TPU or other filament across multiple printers; for a single spool, its capacity may be more than necessary.

Best Compact Everyday Option – SUNLU S1 Plus Filament Dryer

For a straightforward filament dryer for TPU, the SUNLU S1 Plus combines adjustable heat, timed drying, and a fan-assisted design in a smaller single-box format. Its display also shows temperature, time, and humidity while it runs.

Best For: Individual 3D printer users who want adjustable drying and the ability to print while drying.

Pros:

• Supports PLA, PETG, ABS, TPU, Nylon, and 1.75 mm, 2.85 mm, and 3.0 mm filament.
• Adjustable temperature from 35°C to 55°C and configurable drying time.
• Fan design helps discharge moisture, with a display for temperature, time, and humidity.

Cons:

• Its stated capacity is limited to one filament box measuring up to 210 x 89 mm.
• The maximum temperature is lower than the 70°C offered by the larger dryers here.

The S1 Plus is a practical, accessible option when you mainly need to condition one roll at a time. Its lower temperature range is worth considering if your materials require higher-heat drying.

Best Two-Spool Sealed Box – Comgrow SH02 Filament Dryer

The Comgrow SH02 is a practical filament dryer for TPU when you want two-spool capacity and a sealed storage design. Its 150W PTC heater reaches up to 70°C, while preset controls simplify drying for TPU and eight other filament types.

Best For: Users who want to dry two 1 kg rolls together while feeding filament directly to one or two printers.

Pros:

• Dries two 1 kg spools simultaneously and includes two filament-feed holes.
• Reaches 50°C in about seven minutes and up to 70°C in about 25 minutes, according to the supplied specifications.
• Offers one-key settings for nine filament types, including TPU, plus sealing rings and safety protection.

Cons:

• Its two-spool capacity is less than the SUNLU S4’s four-spool capacity.
• The preset approach may offer less manual control than a fully adjustable dryer.

The SH02 balances capacity, heating speed, and moisture protection. It is a strong middle-ground choice for TPU users who need more than a single-spool box without moving up to a four-roll unit.

Best Integrated Storage – Polymaker PolyDryer

If you want a filament dryer for TPU that also helps protect spools between print jobs, the Polymaker PolyDryer combines drying, storage, and direct feeding in one setup. Its heated drying dock, sealed storage box, desiccant support, and built-in hygrometer create a practical moisture-management routine.

Best For: TPU and other filament users who want to dry, store, and print without breaking the seal.

Pros:

• Supports TPU, PA Nylon, PLA, PETG, ABS, ASA, and PVB.
• Works with 1.75 mm, 2.85 mm, and 3.00 mm filament.
• Combines heat, sealed storage, desiccant protection, and humidity monitoring.
• 360° airflow is designed to promote even drying.

Cons:

• Its 1 kg capacity may not suit larger spools.
• The modular dryer-and-box design may take more setup space than a basic dryer.

The PolyDryer is a strong choice when ongoing storage matters as much as initial drying. Its integrated design is especially useful for TPU users who want fewer moisture exposures between prints.

Best High-Capacity Dryer – Creality Space Pi Plus

For users seeking a high-capacity filament dryer for TPU, the Creality Space Pi Plus offers room for two 1 kg spools and uses double 360° PTC hot-air heating. Its touchscreen controls and preset profiles make it convenient for drying TPU and a broad range of other materials.

Best For: Multi-spool users who want fast, evenly circulated heating and simple touchscreen controls.

Pros:

• Holds two 1 kg rolls and provides four filament holes for flexible feeding.
• Double PTC heating and 360° hot-air circulation are designed for uniform drying.
• Supports TPU, PLA, PETG, ABS, PA, PC, ASA, and several composite filaments.
• Offers one-key settings for up to 12 filament types plus adjustable 45°C–70°C control.

Cons:

• Its 1.9 kg weight and two-spool capacity may require more countertop space.
• The feature-rich touchscreen design may be more than needed for occasional drying.

The Space Pi Plus stands out for capacity and control. It is a practical fit for workshops running multiple spools or printers, especially when TPU drying needs to happen alongside other materials.

Best Budget Dry-Storage Box – Comgrow SH01 Filament Dryer Box

The Comgrow SH01 is a straightforward option for anyone needing a filament dryer for TPU with room for two standard spools. It provides adjustable 40°C–50°C heating, temperature and humidity monitoring, and a sealed feeding design for keeping filament protected during printing.

Best For: Users who prioritize two-spool storage and basic moisture control for everyday filament.

Pros:

• Stores two 1 kg spools in its large internal compartment.
• Includes real-time temperature and humidity monitoring through a 2-inch LCD.
• Provides sealed outlets with a silicone cable sheath and Teflon tube.
• Supports standard 1.75 mm and 2.85 mm filament diameters.

Cons:

• The maximum temperature is 50°C, offering less range than the Creality model.
• The supplied compatibility notes list PLA, ABS, and silk filament but do not specifically name TPU.
• The drying mode requires the sealing hole to be opened so moisture can escape.

The SH01 is best viewed as a basic heated dry box with useful monitoring and storage capacity. Before choosing it specifically for TPU, confirm that its 40°C–50°C range suits your material and drying requirements.

How We Picked the Best Filament Dryer for Tpu

For this roundup, we prioritized dryers with temperature controls suited to TPU, consistent heating, practical spool compatibility, and features that support printing directly from the dry box. TPU typically benefits from controlled drying rather than excessive heat, so adjustable settings and reliable sensors matter more than a high maximum temperature alone.

We also considered chamber capacity, noise and power efficiency where available, lid or seal design, display usability, and whether the dryer can accommodate common 1 kg spools. Multi-spool models can be useful for busy workspaces, but only when they maintain even heat and provide enough room for flexible filament to unwind without snagging.

Quick Comparison

What to compare	Why it matters for TPU
Temperature control	Helps dry TPU effectively without relying on unnecessarily high heat.
Spool capacity	Determines whether you can dry one spool or several at once.
Heating and sensors	Supports more even, repeatable drying results.
Dry storage	Reduces moisture uptake after the drying cycle ends.
Print-from-box design	Lets TPU move directly from the dryer to the printer with less exposure.

Key Buying Factors for a Filament Dryer for Tpu

Temperature and Control

Choose a model with adjustable temperature settings and a clear display. TPU often needs a moderate, controlled drying cycle; follow the filament manufacturer’s recommended temperature and time rather than automatically selecting the maximum setting.

Capacity and Spool Fit

Check the stated spool size and internal clearance. A single-spool dryer is compact and straightforward, while dual- or multi-spool units are better for maintaining several materials. Make sure the rollers turn freely with your preferred TPU spool.

Drying Versus Storage

A dryer that also works as a sealed storage box is especially useful for TPU because the material can reabsorb moisture after drying. Look for a well-sealed chamber, desiccant compatibility, and a feed path that limits exposure during printing.

Heating Consistency

PTC heating, temperature sensors, and air circulation can help reduce hot and cool spots. These features are valuable when drying flexible filament, which may print poorly if moisture remains trapped in the spool.

Who Should Buy Which Filament Dryer for Tpu?

Choose a compact single-spool model if you print TPU occasionally, have limited desk space, or want a simple first dryer. A dual-spool dryer is a better fit for users who regularly switch between TPU and other moisture-sensitive materials. For larger print setups, multi-spool options can reduce preparation time, provided the chamber accommodates your spools and offers independent or well-managed temperature control.

If your main concern is printing directly from dry storage, prioritize a sealed design with a stable filament outlet. If you frequently dry nylon alongside TPU, consider a model with a higher temperature ceiling—but use that extra range only when the filament manufacturer permits it. For most TPU users, dependable temperature regulation, easy spool loading, and effective post-drying storage are the most important features.