3D printing has revolutionized the way we create objects and has opened up a world of possibilities for makers, hobbyists, and professionals alike. However, one of the biggest challenges that come with 3D printing is keeping the filament dry. Moisture can cause filament to degrade, leading to poor print quality and even clogging the printer nozzle. This is where filament dryer boxes come into play.

Filament dryer boxes are designed to keep your filament dry and free from moisture. They work by creating a controlled environment that removes any moisture from the filament, ensuring that it stays in pristine condition. These boxes are particularly useful for those who live in humid climates or have a large collection of filament that they want to keep dry.

After testing various filament dryer boxes, we have identified the ones that provide the best performance and value. In this article, we’ll take a closer look at the top filament dryer boxes on the market and help you find the one that’s right for you.

If You Are Short On Time, Here Is A Quick List Showing You The Best Filament Dryer Boxes for Your Printer

# 1

If you’re looking for a high-quality filament dryer box, the SUNLU Filament Dryer Box with Fan for 3D Printer Filament is an excellent choice. It’s easy to use, compatible with most 3D filament spools, and has personalized temperature and drying time settings. With this dryer box, you can say goodbye to poor 3D printing caused by wet filaments.

  • Customizable settings for different 3D filament types
  • Compatible with 99% of 3D filament spools
  • Allows printing while drying
  • Relatively expensive
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# 2

The Sovol Filament Dryer SH01 is a great addition to any 3D printing setup. It removes excess moisture from filaments, resulting in smoother prints with increased layer adhesion. The real-time monitoring of temperature and humidity inside the dryer box makes it easy to keep track of the drying process. The large capacity of the dryer box allows for multiple filament rolls to be stored at once.

  • Removes excess moisture for better prints
  • Displays humidity and temperature in real-time
  • Large capacity for multiple filament rolls
  • Humidity increases during use
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# 3

We highly recommend the SUNLU Filament Dryer Box S2 for anyone looking to improve the quality and reliability of their 3D printing process. With its touch screen, wide compatibility range, and ability to dry and print at the same time, this dryer is a versatile and convenient option for users who want to keep their filament strong and flexible.

  • Easy to use touch screen with recommended temperature settings
  • Compatible with a wide range of filament brands and diameters
  • Allows filament to continue drying while being fed to the printer
  • May not be suitable for large spools of filament
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# 4

The EIBOS Filament Dryer Easdry is a versatile and effective tool for keeping your 3D printer filament dry and free from moisture. With its infinite adjustable temperature and humidity monitor, you can easily adjust the settings to suit your specific needs, and the hot-air circulation heating system ensures that the filament is evenly dried and ready for use.

  • Easy to use and adjust temperature and humidity levels.
  • Compatible with a wide range of filament types and diameters.
  • Hot-air circulation heating system ensures even drying and prevents clogging
  • Not the most affordable option on the market.
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# 5

If you’re looking for a high-quality filament dryer that will help you achieve optimal 3D printing results, the SUNLU S1 Plus Filament Dryer Box is definitely worth considering. With its user-friendly operation, customizable drying settings, and compatibility with a wide range of filament brands, it’s a great investment for any serious 3D printing enthusiast.

  • Prevents entanglement, clogging, poor adhesion, and layer migration caused by dampness
  • User-friendly operation with adjustable temperature range
  • Free drying time setting with a range of 0~24 hours
  • Price may be higher than some other filament dryers
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6 # Comgrow 3D Filament Storages – 3D Printer Filament Dryer Box

The Comgrow Filament Dryer Box is designed to remove moisture from kinds of filaments and provide a dry storage environment during printing. The internal heating system keeps the filament dry, avoiding entanglement, clogging, poor adhesion, and layer migration caused by dampness. The 2-inch LCD screen and touch buttons make it easy to operate and monitor the temperature and humidity in real-time. The outlet structure is smooth and can be covered with a plug when not in use. If you have any unsolvable problems with the Comgrow filament dryer box, their after-sales technical team will provide you with detailed solutions within 24 hours.


  • Large storage volume that can store 2 rolls of 1kg spools and is compatible with PLA PETG ABS SILK filaments
  • Real-time monitoring of temperature and humidity with adjustable temperature range and setting time
  • Great sealed filament box with smooth outlet structure and snap button upper cover for good sealing performance


  • Machine will automatically shut down after 3 minutes if the work mode is not displayed on the screen
  • Some users reported issues with stringing and filament not adhering to the bed at first
  • Not suitable for drying other types of materials besides 3D printer filaments

7 # EIBOS 3D Printer Filament Dryer Box

The EIBOS Filament Dryer Box is an excellent choice for anyone who wants to ensure that their 3D printer filament is always dry and ready to use. The adjustable temperature and humidity monitor, extra-large space, and 100W PTC heater make this dryer box a top-performing product that is sure to meet your needs. Whether you’re a professional 3D printer user or a hobbyist, we highly recommend this product for all your filament drying needs.


  • The adjustable temperature and humidity monitor allows you to dry different types and diameters of filament, ensuring that you get the best results possible.
  • The extra-large space allows for the usage of multiple spools at once, making it easy to dry and store your filament all in one place.
  • The 100W PTC heater is more durable, energy-efficient, and environmentally friendly than other heaters, making this dryer box a great choice for anyone looking to reduce their carbon footprint.


  • The box is not large enough to accommodate larger diameter rolls of filament, which can be an issue for those who frequently use larger spools.
  • The dryer box can be a bit noisy, which may be a concern for those who need to work in a quiet environment.
  • The price point may be a bit high for those who are on a tight budget, but we believe that the quality and performance of this product make it well worth the investment.

8 # FIXDRY 3D Printer Filament Dryer

The FIXDRY Filament Dryer Box is made of high-quality stainless steel and features a PC cover material. It is compatible with 1.75mm, 2.85mm, and 3.00mm spools and has a weight of 0.5 kilograms. The product has passed strict security tests and has corresponding certificates CE FCC PSE UKCA REACH, ensuring safe and reliable operation. With its efficient heating and drying system, the FIXDRY filament dryer box is a great investment for any 3D printing enthusiast.


  • The 110W PTC heater with fan ensures even heating and drying of 3D filament, preventing stringing, clogging, poor adhesion, and layer shift.
  • The adjustable temperature and humidity LCD screen allows you to set the temperature up to 70°C and heating time up to 48 hours, catering to the needs of various 3D filaments.
  • The closed-loop constant heating mode keeps the temperature in the box constant, ensuring energy-saving and safe operation.


  • The startup procedure is a bit complex compared to other filament dryer boxes we’ve used in the past.
  • The temperature and humidity settings can be a bit confusing for first-time users.
  • The price is a bit higher compared to other similar products on the market.

9 # EIBOS Official 3D Printer Filament Dryer 

The EIBOS 3D Printer Filament Dryer Cyclopes is a great solution for keeping your filament dry and ready to use. The real-time humidity monitor allows you to keep track of the humidity level and adjust the temperature accordingly. It is also compatible with a wide range of filament types and diameters, making it a versatile choice for any 3D printing enthusiast.


  • Real-time humidity monitor for precise drying
  • Adjustable temperature to meet the needs of different filaments
  • Compatible with a wide range of filament types and diameters


  • Manually rotating the rolls for drying when NOT printing
  • Large size may not be suitable for all workspaces
  • Some users reported issues with the fan

10 # Comgrow Filament Dryer, Upgraded Filament Dry Box, Large-Capacity 3D Filament 

The Comgrow Filament Dryer Box is user-friendly and comes with a 2-inch large screen LCD monitor that displays humidity and temperature in real-time. It also has a setting temperature of 40°C, 45°C, 50°C, and a setting time from 6 to 12 hours. Plus, it comes with a 1-year warranty and a friendly after-sales technical team that will provide you with detailed solutions within 24 hours.

If you’re looking for a reliable and efficient way to keep your 3D printer filament dry, the Comgrow Filament Dryer Box is definitely worth considering. It’s easy to use, has a large capacity, and comes with a 1-year warranty and friendly after-sales technical support.

Buying Guide

When it comes to buying a filament dryer box, there are several factors to consider to ensure you get the best product for your needs. Here are the key features to look for:

Size and Capacity

One of the most important factors to consider is the size and capacity of the filament dryer box. Make sure to choose a size that can accommodate the spools of filament you use most often. It’s also important to consider the capacity of the box, as this will determine how much filament you can dry at once.

Temperature Range

Another important factor to consider is the temperature range of the dryer box. Look for a product that can reach the temperature range required for your specific filament type. Some boxes may have a wider temperature range than others, so make sure to choose one that meets your needs.

Humidity Control

Humidity control is another important feature to consider. A good filament dryer box should have a built-in humidity control system that can maintain a consistent humidity level. This helps to prevent moisture from getting into the filament, which can cause printing issues.

Additional Features

Finally, consider any additional features that the filament dryer box may offer. For example, some models may have a built-in timer or automatic shut-off feature. Others may come with extra accessories, such as a spool holder or a temperature gauge. These features can add convenience and value to your purchase.

Size and CapacityHigh
Temperature RangeHigh
Humidity ControlHigh
Additional FeaturesMedium

By considering these key factors, you can choose a filament dryer box that meets your needs and ensures your filament stays dry and ready for use.

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