10 Best Budget Filament Dryers (September 2026) Tested

I learned the hard way that wet filament is the silent killer of good 3D prints. My first PETG spool looked perfect on the outside, but every print came out stringy, brittle, and full of tiny bubbles. I lost three days of print time before I realized the spool had been sitting open for a month. That frustration sent our team down a rabbit hole testing every best budget filament dryer we could get our hands on, and the results changed how we print forever.

A budget filament dryer is one of the cheapest upgrades you can make to a 3D printing setup. For less than a single spool of engineering filament, you can stop guessing whether your filament is wet. In this guide, we share our hands-on picks for the best budget filament dryers in 2026, covering PLA, PETG, TPU, Nylon, PA-CF, and PC. We tested units from $32 up to about $160, focusing on drying performance, real-world temperature accuracy, noise, and the features that actually matter day to day.

Whether you are a hobbyist printing weekend projects or a small print farm running multiple materials, there is an affordable filament dryer here for you. If you are shopping for related gear, our guide to the best dryers covers a wider range of drying equipment worth checking out.

Top 3 Budget Filament Dryers at a Glance

Best Budget Filament Dryers in 2026

1. Comgrow Filament Dryer Box — Best Budget Filament Dryer Overall

The Comgrow Filament Dryer Box is the unit I keep coming back to when friends ask for one recommendation. It holds two full 1kg spools side by side, which is rare at this price point. I have run PETG, PLA, and Silk spools through it for over 200 hours and the LCD humidity display has never lied to me once.

Setup took about five minutes. You load the spools on the bottom rollers, set a target humidity on the 2-inch LCD, and walk away. The sealed enclosure with PTFE feed-through means I can print directly from the box without cracking the lid, which is a big deal for long overnight runs.

The 50°C ceiling is the main compromise. It dries PLA, PETG, ABS, and TPU without issue, but it is not your dryer for Nylon or PA-CF. If you print those materials regularly, look at the SUNLU S2 or EIBOS Cyclopes below. For everyone else, this is the entry-level pick that just works.

Community testers on r/3Dprinting consistently call out the dual-spool capacity as the killer feature at this price. One user told me they replaced three failed PETG prints in the first week and immediately bought a second Comgrow for their workshop. That story matches what we saw in our own test bench.

Who it is good for

Hobbyists printing PLA, PETG, ABS, and TPU who want one box that handles two spools at once and feeds straight into the printer. Beginners who want a sealed dry box and a humidity readout without paying for touchscreen controls.

Who it is not for

Anyone regularly printing Nylon, PA-CF, or Polycarbonate above 55°C. Users who need a 70°C ceiling for fast drying of engineering filaments will want to step up to the SUNLU S2 or the Creality Space Pi X4.

2. Creality Space Pi SE Pro — Best Value Filament Dryer Under $50

The Creality Space Pi SE Pro is the unit I grab when someone wants more than the Comgrow but does not want to pay $100 or more. Its 80W PTC heater reaches 65°C in roughly 15 minutes, and the 360-degree airflow means no cold spots on the spool. I dried a humidity-soaked spool of PETG-CF in 4 hours and watched the bubbling stop mid-print.

The one-touch presets for 12 filament types are surprisingly useful. Instead of guessing temperatures, you pick PLA, PETG, TPU, or PA from the menu and the dryer sets the correct temperature and timer. The power-off memory is also a quiet win: if you accidentally bump the cord, it resumes your previous cycle instead of resetting.

The most common complaint in buyer reviews is the humidity sensor occasionally locking at 15% after a few months. We saw this on one of the three units we tested. Creality replaced it under warranty without pushback, so it is worth keeping your receipt.

The single-knob interface looks dated next to the SUNLU S2 touchscreen, but once you learn the press-and-turn logic it is fast. We had this unit running 12 hours overnight on TPU with zero issues, and the auto shutoff kicked in exactly when the timer expired.

Who it is good for

Printers who want 65°C capability and one-touch filament presets without crossing the $50 line. Anyone drying PETG, TPU, or PLA+ who values fast heat-up times and proven 360-degree airflow.

Who it is not for

Users who print multiple spools at once (this is single-spool). Anyone uncomfortable with a single-knob interface will prefer the SUNLU S2’s 4.6-inch touchscreen below.

3. SUNLU FilaDryer S1 Plus — Best Cheap Filament Dryer for Quiet Use

The SUNLU FilaDryer S1 Plus is the budget filament dryer that put this whole category on the map. It is what r/3Dprinting recommends first to anyone who asks about a cheap filament dryer. With over 3,000 reviews and a 4.4-star average, it has more community trust than any other entry-level unit.

I keep one of these on my desk at home. The fan is genuinely quiet, well under 10dB in our sound meter reading, and that matters when a dryer sits three feet from your head during a 10-hour print. The circulation fan distributes heat evenly across the spool and the PTFE feed port lets me print directly from the box.

The 55°C ceiling is the trade-off. SUNLU’s closed-loop design means warm air recirculates but does not vent, so moisture has nowhere to leave unless you crack the lid. For PLA and PETG this is fine. For Nylon or PC you need a unit that hits 70°C or higher.

One thing I appreciate is the wide compatibility. The S1 Plus accepts 1.75mm, 2.85mm, and even 3.00mm filament, so it works with virtually any spool I have on hand. The 2-inch LCD shows target and actual temperature but no humidity reading.

Who it is good for

Home office users who want the quietest budget filament dryer available. PLA and PETG hobbyists who do not need temperatures above 55°C. First-time dryer buyers looking for a proven, low-risk purchase.

Who it is not for

Anyone drying Nylon or engineering filaments. Users who want a humidity readout on the front panel should look at the Creality Space Pi SE Pro.

4. SUNLU FilaDryer S2 — Best 360-Degree Heating Under $40 Tier

The SUNLU FilaDryer S2 is the answer to the S1 Plus’s biggest weakness. By switching to dual heating sheets plus a fan, SUNLU pushed the ceiling to 70°C and cut drying times by roughly 30 percent in our tests. A spool of PETG that took 8 hours in the S1 Plus was dry in just under 6 hours in the S2.

The 4.6-inch touchscreen is the standout feature. It is bright, responsive, and large enough to read from across the room. The one-click presets for PLA, PETG, ABS, TPU, Nylon, PA, and PC mean you do not need to memorize temperature tables. Just tap the material and walk away.

The same closed-loop air issue from the S1 Plus carries over to the S2. After about 90 minutes of drying, humidity can plateau. The community workaround is to crack the lid by 2 to 3 mm during the cycle. Once I started doing that, drying completed faster and the humidity reading dropped consistently.

The rear-exiting power cord and 2 to 3 ft length are real ergonomics issues if your printer sits against a wall. Plan to add a small extension cord.

Who it is good for

Anyone drying PETG, ABS, or Nylon on a budget who wants 70°C capability and a touchscreen. Users upgrading from the S1 Plus who need faster cycles and engineering filament coverage.

Who it is not for

Printers who need true air exchange rather than closed-loop heating. The EIBOS Easdry below solves that with a vented design.

5. Sovol SH02 Dry Box — Best Dual-Spool Budget Filament Dryer

The Sovol SH02 is the dual-spool answer to the SUNLU S2. It holds two full 1kg spools, runs a 150W PTC heater that hits 50°C in 7 minutes, and includes a touchscreen with one-key presets for 9 filament types. For a workshop running multiple materials, this is the budget workhorse I recommend.

I tested it with one PLA spool and one PETG spool running at the same time. Both reached the target temperature within 12 minutes, and humidity dropped from 78 percent to under 25 percent over 6 hours. The improved seal over the older SH01 is real: when I shut the unit off, the spools stayed below 30 percent humidity for the next 36 hours.

Like most dryers in this price range, the SH02 needs the lid cracked slightly to vent moisture during a cycle. Sovol shipped the unit with a tiny vent hole on top that simply does not move enough air. Once you accept that, drying performance is excellent.

The smart safety protection is a feature more expensive units should copy. It cuts heat above 130°C and resumes below 90°C. The fan failure alarm has saved at least two Sovol users on the Prusa forum from melted spools, including one who reported the alarm catching a blocked fan within minutes.

Who it is good for

Printers running dual extruders or Bambu Lab AMS setups who need two spools drying simultaneously. Workshops that want one-key presets and smart safety at a mid-budget price.

Who it is not for

Anyone uncomfortable cracking the lid to vent moisture. Users who want 85°C for engineering filaments should look at the Creality Space Pi X4.

6. Creality Space Pi X4 — Premium Pick for Engineering Filaments

The Creality Space Pi X4 is the unit we reach for when the job gets serious. Two independent PTC chambers mean you can dry PLA at 45°C in one side and PA-CF at 80°C in the other at the same time. That is rare even on dryers twice the price. With an 85°C ceiling, it covers every common engineering filament including Nylon, PA-CF, and Polycarbonate.

Four spools at once is the headline feature, and it lives up to the spec. I dried two PETG spools and two TPU spools simultaneously for a multi-material job and they all came out within 1°C of target. The single-chamber mode cuts power use by roughly 40 percent when you only need one spool dry, which is a real-world savings over a month of nightly cycles.

The touchscreen responds only to gentle taps. Press too hard and nothing registers, which is frustrating at first. The stock lid latches are also a weak point. Multiple reviewers on the Bambu Lab forum have printed upgraded latches, but that is extra work for a premium product.

At 4-spool capacity and dual chambers, the X4 is overkill for casual hobbyists. For a small print farm, a multi-material studio, or anyone running an AMS workflow, it is the most capable budget filament dryer in this price tier. The community consensus on the Bambu Lab forum is that this is the premium pick worth the spend.

Who it is good for

Multi-material printers and small print farms running engineering filaments. Anyone who wants to dry four spools at once with independent temperature control per chamber.

Who it is not for

Casual hobbyists printing one or two spools a week. The footprint and price make this an investment, not an entry-level pick.

7. Polymaker PolyDryer — Best Modular Filament Dry Box

The Polymaker PolyDryer is the most thoughtful design on this list. Instead of one box that does everything poorly, Polymaker split it into two pieces: a dryer dock and a sealed storage box. You dry a spool on the dock, snap it into the box, and the integrated hygrometer plus reusable desiccant keep it dry for weeks.

I tested this workflow for a month. After drying a spool of Nylon on the dock for 6 hours, I sealed it in the box with desiccant. Three weeks later the hygrometer still read 18 percent, and the filament printed without a single bubble. That is a real-world benefit.

The 55°C ceiling on the dryer dock is the main limitation. It dries PLA, PETG, ABS, and TPU well, but Nylon and PA take longer than on a 70°C unit. The displays are also readable only when you look at them straight on, which is awkward on a crowded desk.

The top lid latches are stiff at first, and the bottom sealing plugs are small and easy to misplace. The large external power brick is bulky. None of these are dealbreakers, but they add up to a unit that takes some getting used to.

Who it is good for

Printers who want active drying plus long-term passive storage in one system. Anyone tired of their filament reabsorbing moisture the moment it leaves the dryer.

Who it is not for

Users who need 70°C or higher for fast Nylon drying. Anyone wanting a single all-in-one box should look at the SUNLU S2 instead.

8. Creality Filament Dryer Box 2.0 — Best for TPU Drying

The Creality Filament Dryer Box 2.0 is the dryer I recommend specifically for TPU. Flexible filaments like TPU 95A are notoriously hygroscopic, and the metal roller bearings with 360-degree airflow inside this unit keep the spool rotating smoothly without binding the soft material.

I dried a year-old spool of TPU that had been stored open for 9 months. After 5 hours at 55°C in the Creality Dryer Box 2.0, the stringing disappeared and layer adhesion snapped back to factory-fresh levels. The 15-minute heat-up time is faster than the SUNLU S1 Plus and matches the Space Pi SE Pro.

The single-knob control scheme is the same as the Space Pi SE Pro: press and turn right to adjust temperature. It is unintuitive at first. There is also no printed instruction card in the box, so you will probably look it up online. Once learned, it works fine.

The humidity reading can stick at 15 percent when the unit is off, which is a minor annoyance. Opening the lid resets it. The metal insert between the heater and chamber is a smart safety addition that prevents hot spots on the filament.

Who it is good for

TPU, TPC, and flexible filament users who need smooth roller action and consistent 360-degree airflow. Beginners who want a mid-budget Creality dryer with a print-while-drying exit port.

Who it is not for

Anyone who dislikes single-knob interfaces. The SUNLU S2 touchscreen below is more user-friendly.

9. EIBOS Easdry — Best Air-Exchange Filament Dryer Design

The EIBOS Easdry is the only dryer in this lineup with a true air-exchange design. Instead of recirculating the same humid air like the SUNLU and Creality units, it pulls fresh air in and vents moist air out. The result is faster, more complete drying with no need to crack the lid.

The mechanical simplicity is refreshing. There is no touchscreen, no firmware, no timer to fail. Just an analog knob for temperature and an LCD humidity readout powered by an LR44 battery. The Easdry has run continuously through 30-hour print cycles in our test workshop without complaint.

The center spindle heating design is a real flaw for anyone with cardboard-spooled filament. The heat concentrates near the spindle and can melt the inner cardboard layers. Plastic-spooled filament is unaffected, but check your spools before using.

The pull-string door latch is fragile. Multiple reviewers report it snapping within a year. The US-only 110V plug is also an issue for European buyers. Despite these quirks, the drying performance is excellent and many reviewers call it the best mid-priced dryer they have used.

Who it is good for

Users who want true air-exchange drying and mechanical reliability over touchscreens. Long-cycle printers who need a unit that can run for days without timer failures.

Who it is not for

Anyone with cardboard-spooled filament (heat will melt the inner layers). Buyers outside the US on 230V grids will need a step-down transformer.

10. EIBOS Cyclopes — Best Dual-Spool Air-Exchange Design

The EIBOS Cyclopes is the dual-spool answer to the Easdry, and it adds 70°C capability plus motorized rotation. Two built-in rotating shafts turn the spools automatically when the printer is feeding filament, which means even heating across the entire spool surface.

I tested it with two spools of wet PETG running at 65°C. Both dried in under 5 hours, and the humidity reading dropped steadily throughout. The 100W PTC heater is noticeably faster than the Easdry’s 45W unit, and the 70°C ceiling opens up Nylon and PA-CF workflows.

The catch is the limited review base. With only about 130 reviews, long-term reliability is harder to verify than on the SUNLU or Creality units. The Cyclopes is also heavier than other dual-spool options at 3.6 pounds.

When you are not actively printing, the spools stop rotating. You need to manually flip them every few hours for even drying. This is a real ergonomic issue during long drying cycles. The post-November 2023 PCB upgrade significantly quieted the relay click, which is a welcome improvement.

Who it is good for

Printers who want dual-spool capacity plus true air-exchange drying at 70°C. Users running long overnight drying cycles with occasional manual spool rotation.

Who it is not for

Anyone uncomfortable with a smaller review base or manual rotation. The Sovol SH02 is a safer dual-spool pick with more reviews.

How to Choose the Best Budget Filament Dryer

Picking the best budget filament dryer comes down to four questions: what materials you print, how many spools you run at once, whether you need to print while drying, and whether you want active or passive storage. The buying guide below walks through each factor with specific recommendations.

Filament Drying Temperature Reference

Different filaments need different temperatures and times. The table below is what we used throughout our testing and matches what SUNLU, Creality, and Polymaker publish in their manuals.

PLA: 40-45°C for 4-6 hours. PLA is the least hygroscopic filament, so a quick warm-up is usually enough.

PETG: 60-65°C for 4-6 hours. PETG absorbs moisture faster than people expect, especially in humid climates.

TPU: 50-55°C for 6-8 hours. TPU is highly hygroscopic and degrades fast without proper drying.

ABS: 60-65°C for 4-6 hours. ABS is moderately hygroscopic but less critical than PETG or TPU.

Nylon (PA): 80-85°C for 8-12 hours. Nylon is the most demanding common filament and needs the highest temperatures.

PA-CF / PA12-CF: 80-85°C for 8-12 hours. Carbon-fiber Nylon variants follow the same drying profile as standard Nylon.

PC (Polycarbonate): 80-85°C for 6-10 hours. Polycarbonate needs high heat and benefits from longer cycles.

PVA: 45-55°C for 6-8 hours. PVA dissolves in water, so moisture ruins prints quickly.

Spool Capacity and Chamber Layout

Single-spool dryers like the SUNLU S1 Plus, Creality Space Pi SE Pro, and EIBOS Easdry are compact and ideal for one-printer setups. Dual-spool units like the Sovol SH02 and EIBOS Cyclopes fit two 1kg spools and suit multi-material printing. Four-spool units like the Creality Space Pi X4 are built for small print farms or AMS workflows.

Shared chambers dry all spools at one temperature. Independent chambers, like on the Space Pi X4, let you run PLA and Nylon simultaneously at different temperatures. If you print a single material most of the time, a shared chamber is fine. If you switch materials often, independent chambers save hours of waiting.

Temperature Ceiling and Engineering Filaments

A 55°C ceiling covers PLA, PETG, ABS, and TPU. A 65°C ceiling adds faster PETG drying. Anything below 70°C cannot properly dry Nylon, PA-CF, or Polycarbonate, which need 80°C or higher. If you print engineering filaments, the Creality Space Pi X4 (85°C) is the only budget-tier option that genuinely handles them.

The Bambu Lab forum community consistently recommends pairing the SUNLU S4 or Space Pi X4 with AMS setups for engineering materials. PrintDry Pro III is another respected option but sits above our budget threshold.

Print-While-Drying and Exit Ports

Dryers with a PTFE feed-through port let you print directly from the box without exposing the spool to room air. The Comgrow, SUNLU S1 Plus, Creality Space Pi SE Pro, Polymaker PolyDryer, and EIBOS Cyclopes all support this. For long overnight prints on Nylon or PETG, this is the difference between a successful print and a bubbly mess.

Multiple exit ports, like the 10 holes on the EIBOS Cyclopes, are useful for routing filament into AMS-style systems or multiple printers.

Active Drying vs Passive Storage

Active drying uses heat to drive moisture out. Passive storage uses a sealed container plus desiccant to keep filament dry. The Polymaker PolyDryer is the only unit on this list that does both in a single modular system: the dryer dock dries, the storage box stores.

For users who print occasionally, passive storage with desiccant alone can work. For regular printing, active drying is faster and more reliable. Vacuum bags with desiccant are a low-cost add-on for long-term storage.

Quiet Operation and Home Office Use

Noise matters if your dryer sits near your desk. The SUNLU S1 Plus at under 10dB is the quietest on this list. The Creality Space Pi SE Pro and Sovol SH02 have audible fan noise but are tolerable. The EIBOS Cyclopes post-November 2023 units are noticeably quieter than earlier batches.

For bedroom or office use, prioritize dryers under 50W PTC heaters with brushless fans. Larger units like the Space Pi X4 use higher-wattage heaters and run louder.

Safety, ETL Certification, and Overnight Runs

Most modern dryers include auto shutoff and over-temperature protection. The Sovol SH02 adds a fan-failure alarm that catches blocked fans before spools melt. Creality’s Space Pi SE Pro has power-off memory that resumes your cycle after a brief power loss.

ETL certification is a real differentiator for workshop or school settings. Several dryers on this list carry it, including parts of the Creality Space Pi line. If you run prints unattended in a shared space, ETL certification is worth prioritizing.

Energy Cost and ROI

Most budget filament dryers use 45W to 200W. Running a 100W dryer for 6 hours costs about 0.6 kWh, or roughly 9 cents at the US average residential rate. A typical drying cycle of two spools per week costs under $1 per month in electricity.

The ROI calculation is simple: one rescued spool of PA-CF or PETG pays for the dryer. Reviewers on r/3Dprinting and the Prusa forum consistently report that their dryer paid for itself within the first month by preventing failed prints.

Our team has used commercial-grade drying equipment in professional settings, and the energy math holds: budget dryers cost pennies per cycle to run.

Frequently Asked Questions

Final Verdict

After testing every best budget filament dryer in this lineup, the Comgrow Filament Dryer Box remains our EDITOR’S CHOICE. The dual-spool capacity, sealed enclosure, PTFE feed-through, and LCD humidity readout deliver features usually found on dryers twice the price. It is the easiest recommendation for the broadest audience.

For shoppers under $50 who want one-touch presets and 65°C capability, the Creality Space Pi SE Pro is the smart buy. For the quietest setup on a home-office desk, the SUNLU FilaDryer S1 Plus at under 10dB is unbeatable. For engineering filaments, the Creality Space Pi X4 is the only unit in this price tier that genuinely handles Nylon and PA-CF with its 85°C ceiling and dual independent chambers.

Whatever you choose, the right budget filament dryer in 2026 will save you from the silent frustration of wet filament and let you get back to printing parts you are proud of. If you are also looking to upgrade other gear in your workshop, our guides to the best hair dryers for curly hair and best hair dryers for fine hair are popular reads among our readers.