3D Printer Filament Dry Box
25L Dehumidifying Storage Cabinet with Digital Temperature & Humidity Display — 110V
Product Overview
Protect your 3D printer filament, camera lenses, and sensitive electronic components from moisture with this 25L electronic constant-humidity dry cabinet. A high-performance dehumidification module keeps operation quiet and energy-efficient, making it an ideal storage solution for 3D printing studios, photography studios, and hobbyists alike.
Product Parameters
| Voltage | AC 110V |
|---|---|
| Rated Power | 8W |
| Capacity | 25L (6.6 gal) |
| Material | Cold-rolled steel plate + tempered glass door |
| Humidity Control Range | 25%–60% RH |
| Function | Dehumidification |
Precautions
- The dry box only dehumidifies and cannot humidify. When the ambient humidity is lower than the target humidity, the humidity reading shown by the dry box will be essentially the same as the ambient humidity.
- The dry box cannot control temperature. It only monitors the actual temperature inside the cabinet, which fluctuates with the ambient temperature.
- For optimal dehumidification performance, make sure the glass door is sealed tightly against the cabinet body during operation.
- Items must be completely dry before being placed inside the cabinet. Never place damp items directly into the cabinet.
- Humidity inside the cabinet will rise when the door is opened to add or remove items. This is normal and is caused by outside air entering the cabinet or by newly placed items being more humid than the interior. (The increase depends on how long the door stays open, the external air humidity, and the moisture content of the items.)
- Dehumidification speed depends on the ambient humidity and the moisture level of stored items. Higher ambient humidity, more items, or wetter items will require a longer dehumidification time, and vice versa. If the target humidity range cannot be reached after extended dehumidification, run an empty-cabinet test to verify that the dehumidifying function is working properly.
Product Features
1Heat-Free, Effective Dehumidification
Designed for moisture-proof storage to preserve the original performance of your filament.
2Adjustable, Accurate Humidity Control
Adjustable range of 25–60% RH to match the storage needs of different filaments and optical devices. The external digital display shows real-time temperature and humidity, so you can read the data without opening the door and disturbing the humidity inside.
3Quiet Operation, Low Power Draw
Runs with low noise and low power consumption for energy-saving, stable long-term operation.
4Large Capacity, Flexible Layout
A cold-rolled steel cabinet with a transparent tempered glass door lets you visually check filament condition at a glance. Also suitable for camera lenses and precision electronic parts.
5Secure Locking, Reliable Sealing
The mechanical key lock prevents unintended opening and dust ingress, protecting valuable filament and photography gear. The well-sealed cabinet body reduces external moisture intrusion.
6Multi-Purpose Usage
One cabinet, many uses: moisture-proof storage for 3D printing filament, photography equipment, electronic components, and collectibles.
Product Details
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Digital Display
The digital temperature and humidity screen makes it easy to read current values. Compact in size and quick to respond, it provides real-time environmental monitoring.
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Door
The transparent door allows clear observation of stored filament without opening the cabinet. A built-in key lock secures the door for dust-proof and moisture-proof protection.
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Dehumidifier
The dehumidifier features multi-gear knob adjustment so you can set the target humidity for different filaments with simple, intuitive operation. The modular integrated structure makes disassembly and maintenance easy.
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Rear Panel
The rear ventilation and heat dissipation panel uses a multi-groove structure to speed up heat dissipation from the dehumidifier module and prevent local heat buildup inside the cabinet. Easy to assemble and disassemble.
Operation Method
AMachine Placement
- Place the unit on a horizontal, solid surface. Leave at least 5 cm (2 in.) of clearance between the unit and surrounding objects or walls.
- Do not place the unit in locations with drastic temperature fluctuations, direct sunlight, heavy dust, strong airflow, or dark and humid conditions. These environments will reduce or destabilize dehumidification performance.
BPower On
- Connect the power supply. The green operating indicator light on the core module will turn on and the unit will start working.
- Operation sequence:
- Insert the adapter plug into the AC power socket.
- Then insert the DC plug of the adapter into the DC socket of the unit.
CHumidity Setting & Adjustment
- Select and adjust the humidity according to the items you plan to store.
- Turn the knob to the corresponding position, close the door, and run the unit empty for 8–12 hours. Once the humidity stabilizes, check whether the reading on the hygrometer falls within the required humidity range.
- If the humidity is within the required range, open the door, place your items into the dry box, and close the door.
- If the humidity is outside the required range, adjust the knob position:
- If the displayed humidity is higher than the required range, turn the knob slightly clockwise.
- If the displayed humidity is lower than the required range, turn the knob slightly counterclockwise.
- After fine adjustment, close the door and wait for the internal humidity to stabilize, then check the displayed humidity. If it is within the required range, proceed to Step 3. If it is still outside the range, repeat Step 4 until the target humidity is achieved.
Product Display
On Oct 29, 2026 at 23:12:43 PDT, seller added the following information: