Adjustable Speed High-Volume Desktop Soldering Fume Purifier - Ultra-Low Cost $2 (Fans and filter cartridges can be stacked infinitely, speed adjustable)

Updated!!!

This update mainly includes: 1. Integrated filter mesh, greatly saving printing time; 2. Removed the button switch, now uniformly using a fan speed controller switch; 3. HEPA filter paper uses a 1.5cm folded height, making the compartment larger and more compatible. (For direct purchase on Xiaohuangyu, please search user ID: 狠狠建模)

This model is suitable for all 12cm fans (side length 12CM, parallel hole distance 10.5CM), regardless of thickness

Designed with 2 compartments for HEPA filter mesh and activated carbon beads

If you only need HEPA, just print plate 1; if you need both, print all plates

You can freely stack fans to increase airflow (fan-filter box-fan-filter box)

Shopping List: Fan 6 yuan X2, PWM speed controller 2 yuan, filter paper 6 yuan, screws 1 yuan, activated carbon optional

12cm fan (Recommended Delta 12cm, 3.8cm thick, suggested power around 16w-24w, voltage selected according to your power supply) (Keywords: Delta 4 5 6 7 8 9 12cm cm 12V24V Silent Amplifier Inverter Power Supply Chassis Cooling Fan)

PWM speed controller (Search image on Taobao, other options are also fine)

HEPA filter paper (Choose one with a folded height within 1.5cm, cut by yourself)

Computer fan screws

Activated carbon beads (Search keywords on PDD: Activated carbon Cat litter)

DC connector (choose a snap-on type with an 11.6mm opening, recommended to search image on Taobao, 5521/5525 choose according to your preference)

Important reminder!!!!! If using a single fan, please do not print the activated carbon box from plate 2, just print one activated carbon box from plate 3

Assembly is extremely simple, and the modular design allows for free combination

Everyone is welcome to share their color schemes