Diy air carbon filter!

I'm setting up a cab grow
3ft high 2ft width 2ft depth
I want to make my own air carbon filter
But would like some ideas from people experienced
On this DIY filters

Do they actually work I am planning to have at least 3 plants in their
Also I want to hang it won't have space in the bottom.
If you guys know please put details what each accessories
Is called and basically step by step.
I am also gonna use an ona bottle to help it.
It is going to be my first real proper grow im taking my time in
This cab no light leaks and very hidden so i dont know
How bad the smell actually gets.

Any ideasplease help thanks riu.

Use the search man, so many DIY carbon filters with detailed instructions! even just type DIY carbon filter into google and you will have a full night of reading ahead.

Yes they work.

Okay here we go I am goign to give you a very fast instruction:

Buy [input desired inch tubing here ie 6"] tubing connectors. And screen and a air conditioning filter from home depot. They come in a plastic thin package and are carbon filters. What you will do is wrap the screen in-between the two connectors leaving about 1 ft of open space that the screen is holding. If you used connectors then cap one end. I prefer to buy one of the cheap inline fans from home depot to use as the front of the filter and a 6'' PVC fitting cap for the end and wrap screen between the two.

Does it work? Yes it deffinately does. I use it wit great success and I run 5 plants in bloom. They are cheap and you can layer carbon filters if you please. I like 6" fits most hoods and has a nice array of fans online for cheap. (eBay)

Yea I've done google but I wanted recommendations

Thanks light house that sounds very impressive.
Wow 5 and no smell awesome.
You got a picture of it bro?
To get a better idea.

Would 4" work its a small space and im planning on using
Either 150w or 250w so I dont need that big of a inline fan?
Thanks man.
Hopefully you can upload a pic if it's not to much of a bother.