Xiaomi/Smartmi Air Purifier activated carbon mod V2

This is Version 2 of my activated carbon insert for multiple Air Purifiers made by Xiaomi which use the SCG4026GL filter and it's variants. My first version (https://www.printables.com/model/1467771-xiaomismartmi-air-purifier-activated-carbon-mod) reduced the airflow too much, so I redesigned the whole thing.

Air Purifiers this mod is compatible with:

• All Xiaomi/Mi/Smartmi etc. Air Purifiers which use the SCG4026GL type of filter (normal, green and purple one).

• 2

• 2H

• 2C

• 2S

• 3

• 3C

• 3H

• Pro

• Smartmi Air Purifiers (like this one https://eu.smartmiglobal.com/products/smartmi-air-purifierhttps://eu.smartmiglobal.com/products/smartmi-air-purifier)

• And probably some more models.

NOTE: I personally tested it with the Xiaomi 3C and the Smartmi Air Purifier.

Some facts:

• Way better filtering of bad odors! Test in a smokey area: A used filter with around 500 hours on it needs over an hour to get the smell mostly out of the air. With this activated carbon insert it takes 10-15 minutes.

• 2mm openings: You can use 3-4mm activated carbon pellets or even granulate.

• Flow decrease only around 30% because of the big surface area (way better than Version 1!)

• It uses M3 screws and heated inserts for durability.

• Option to use a filter material on top of the activated carbon if yours is a bit dusty.

What you need:

• 4x M3 heated inserts

• 4x M3 screws (DIN 912) with at least 7-8mm length, but they can be longer if you don't have them on hand

• Filament (PLA, PETG, ABS or whatever you want to use)

• A 3D-Printer :-)

Happy printing!