Easy to Build DIY Carbon Filter
- Thread starter MightyBuddha
- Start date
REDDFACTOR
Active Member
looks good . ima try it
I have a grow-bathroom with an exhaust fan of 1200 m^3/hr, or 750CFM. it has a 30cm diameter (13inch). IM worried that my exhaust fan might be a bit too strong for this method, and might either pull the aluminum screen in or have too much resistance. Does air flow through this filter nicely or does it block airflow? How long do you recommend my filter to be? (assuming it has a 13 inch diameter and pulls at 750CFM)
PopTop
Well-Known Member
This thing works great but you can't use a high speed fan cuz the air flowing past the carbon filter needs x amount of time for it to adhere to the filter, I had a 250 cfm inline fan attatched and it still stunk of skunk lol, after reading an article I reattached my 80 cfm fan to it and whala no stink
JMO
JMO
Boonqueesha
Member
Hey, guys! I'm starting my first closet grow here soon and I've been searching the forums looking at different setups trying to find good ideas. I was looking at how to neutralize the smell and came across this awesome thread. I plan on throwing one of the TruAir filters into my box (which I've heard work amazing) and building this scrubber setup. From the pictures, it doesn't look like the tube was filled with anything, but some of the posts have confused me. It's just wrapping the filter around the aluminum wire and attaching everything really tight with duct tape, right? Then hooking up the ventilation to pull the air from the box out through the scrubber? Kind of like a chimney?
I'm going to try to build my setup to use five CFL bulbs at probably 6500K or 5000K and then place my ventilation in the ceiling to pull the hot air (that rises) out of the box and through the scrubber. I want to have my intake on the bottom front of my box, so that my plant stays cool and gets lots of fresh air.
Am I understanding this correctly? I'm only going to be growing one plant at a time, so it won't be like I have a forest in my box or anything.
I'm going to try to build my setup to use five CFL bulbs at probably 6500K or 5000K and then place my ventilation in the ceiling to pull the hot air (that rises) out of the box and through the scrubber. I want to have my intake on the bottom front of my box, so that my plant stays cool and gets lots of fresh air.
Am I understanding this correctly? I'm only going to be growing one plant at a time, so it won't be like I have a forest in my box or anything.
woz the herb man
Member
where can i buy this carbon, i'm in the uk
SativaMe@420
Well-Known Member
You can get it at pretty much any wall mart, home depot, hardware store or online: (-->CLICK HERE<--)
The Red
Active Member
this doodle should help you
Attachments
baldylox59
Active Member
I REALLY like this idea as it wouldn't necessarily have to be vented outdoors. I might instead of cutting a section of the vent completely out, cut a series of "louvers/windows" so that you maintain some of the structural integrity. That way you can hang_mount it using standard vent straps. The louvers should probably be 1" to 1½" tall by 1" or more inches less than the width of your filter media, and wrapped around the vent pipe. That way when you wrap the filter around it, you don't need chicken wire or mesh inside the filter. You could wrap the "outside" of the carbon filter with vinyl window screen to better secure the filter media and would not significantly restrict air flow . This would be a much stronger setup and could be neatly suspended or wall mounted.
Sorry that was kinda Long Winded . . .
Sorry that was kinda Long Winded . . .
Damngoodstuff
New Member
will the filter work just as well if the filter is outside the box?
SupraSPL
Well-Known Member
I started off using aquarium carbon and it worked better than having nothing but when I switched to air phase coconut carbon I realized what I had been missing. You can get it on eBay about $4 per pound. Use it for about 6 months then you can reactivate it by dumping used carbon into a stainless kettle and setting it on a campfire/coals. It will get so hot it will glow.
The Red
Active Member
The "dirty" air needs to be sucked through the carbon filter. I don't think they're made to work well with air pushing through them but I guess you could do it. oR you can vent the air into a box and put the carbon filter inside that box if you don't have enough room for your plants and the carbon filter.
razerbaacks bongstead
Active Member
Hi all. my first post and a newbie to these forums so be gentle with me, ill be doing my first grow in a couple of months so floating around getting all info I can before starting reading these forums and finding this post about making your own filter was icing on cake 
. my question guys can a Cooker Hood Grease & Carbon Activated Charcoal Filter Sheet be used? im in uk many thanks guys love the info on your webby spot on a real help
. my question guys can a Cooker Hood Grease & Carbon Activated Charcoal Filter Sheet be used? im in uk many thanks guys love the info on your webby spot on a real help
youknowthekid!
Active Member
Very awesome DIY. People could even get crazy and have a 6" outer tube with a 4" inner tube, with the 2" gap filled with activated carbon. The 6' of course still wrapped with the filter. Only small challenge would be to plug that 2" gap, but I suppose you could just wrap it with more screen or fishnet stocking or the like.
DemonTrich
Well-Known Member
Sp33dymonk3y
Active Member
Curious are u supposed to crush the pellets or do anything with them...? I tested it out by liting a piece of paper in my tent and still smells 
different design which has a bunch of hits a lot more than this (no offense to OGP) just saw it first and looks just like the real CF.. My tent goes by negative pressure.. No intake hole at bottom just air intake pressure holes
different design which has a bunch of hits a lot more than this (no offense to OGP) just saw it first and looks just like the real CF.. My tent goes by negative pressure.. No intake hole at bottom just air intake pressure holes