Modifing pc fan for Zen's carbon filter

I modified an 85 cfm pc fan from radioshack to fit the carbon filter zen built (thanks for the post zen it was helpful) and using it for a small grow cabinet now i am sharing it with everyone else. its my first diy so bare with me im new it this.

this is my fan


your going to need a plastic square grate for lowes or home depot



now cut out the middle to create an opening i used tim snips


next sand it down to make a semi flush fit


no place it on the fan and drill your holes for you screws and spread cocking around it to stop any possible leaks


after all that put it on the fan and screw it down and let it sit till its dry. i let it sit for 1 day


make the filter


when the cocking hardens put the filter on and tape it i used reflective duck tape it all i had, so i impervised


and now your done just screw it in to the box with some long enough screws to go through the grate, the fan, and the box



well thats it for now i hope this is hepful to someone.

leave replies let me know what you think.


Thanks to rollitup community and members. my stealth grow wouldn't be possible without all the information this site has

looks workable, but i wonder how long those "free flow" fans will last thro a filter, i use dust filters for my pc and they sure make the fans work harder, and those are just thin filters too....

i dunno but gonna find out, but any fan will work harder if u put a filter on it though

lemme know if you could, i'm gonna run those fans everyware in my room for extra air movement, using pc power supplies to run them, got spots i could use them with a filtration setup. also been thinkin of them for my intake's.

so far its workin, i run 2 80mm pc fans from circuit city as intakes

so can you feel the airflow through carbon filter? did you account for cfm of intake and outtake to make sure its even?

air is going through the filter jus fine as for the cfm i got 2 80mm pc fans rated at 34 cfm so intake is lower than out already, so by putting the filter on th 85 cfm it probly evened it out

So,Does it really work ? Any change on the odor ?

I'm guessin, my wife isn't complaining

Hah .. So defin work !

good stuff. +rep

it works, no smell and it still keeps my box cool

how to you hook up a pc fan so that it works?..are you plugging it into a motherboard or what?

STDZZ420 said:

how to you hook up a pc fan so that it works?..are you plugging it into a motherboard or what?

Click to expand...

get a 12v charger/adapter from a phone, computer router, or buy one from walmart. now take the pc fan pos. wires and connect them to the pos. wires on the charger/adamper and do the same to the neg wires. Plug the charger in and see of it works of not then swap' em, make sure the wires don't touch. If it works un plug it then e tape it. no ur done

pabedizzle said:

so can you feel the airflow through carbon filter? did you account for cfm of intake and outtake to make sure its even?

Click to expand...

If it wasn't I would imagine the extra power of the intake putting pressure into box would help the out-take push through the filter.

the fan is still workin and there is no smell. expect for when i open box then i can smell the plants. So the set up def works

Nice job ! Thanks for posting bertosmurf !!! +rep

bertosmurf said:

the fan is still workin and there is no smell. expect for when i open box then i can smell the plants. So the set up def works

Click to expand...

WOW good stuff didnt think it would take the smell completly away

its almost like a speaker box as long as its sealed completly nothing can get ecsape out of it

how much intake and exhaust do you have set up because it seems that i have the same set up i just wanna check #'s