top of page
  • Writer's pictureWeed In A Pot

How to Build a Mini Carbon Filter & Exhaust Fan

A quick guide on how to build a small carbon filter and fan combo unit with 120mm fans, some activated carbon, and a lot of straws. A quick note regarding this build - after prolonged used of this custom carbon filter I've started taking some of the activated carbon out to improve the overall airflow, down to about 25% filled and have gotten good results still although the activated carbon will need to be replaced more frequently because of this. Like the content? Then check out our books on Amazon at

Items I used to make this:

120mm Axial Fan: 120mm

Activated Carbon:

2,708 views0 comments


Commenting has been turned off.
bottom of page