Introduction: 120mm Arctic P120 to 125mm Carbon Filter

This air purifier is super SILENT

you can find the models on my Tinkercad and the STL files are shared here

Step 1: Print the 3 Stl Files

print in PETG for flexibility compared to PLA

the tinkercad will let you easily adapt the pieces for other filter / hose sizes.

the files are available on MEGAsync!hLZywSIA!wJG3qCfSHXWUcOum2OT_cW_...!xDIkXCKC!L2Z7Ulq6T5BV2VTGBKhV0KW...!MWIAGQiR!K_Lk6KJ4qYkTkerlwQwhwu...

Step 2:

for assembly you'll need the M4 size screws

and a 12V DC power adapter

with or without dc-dc converter

Step 3: Step3: Install Fan on 125mm Carbon Filter and Hose

as you can see, if light is an issue, print in black petg

Step 4: Advanced: Control the Pwm Fan With Mqtt and Node-red From Raspberry to Esp8266