Will this carbon filter work?

[Architechno]

http://www.homedepot.com/h_d1/N-5yc...splay?langId=-1&storeId=10051&catalogId=10053

I stumbled upon this and it looks friggen perfect for my microcab... Will this be effective, as it is for water and not air?

 

[NorCalFor20]

lol nooo man thats for water

Try Phresh Filters 4" x 8" its rated for 150 CFM you could use a small 4 inch fan and would eliminate any smell for 2 years $100

 

[Architechno]

lol nooo man thats for water

Try Phresh Filters 4" x 8" its rated for 150 CFM you could use a small 4 inch fan and would eliminate any smell for 2 years $100

$100 is a lot of money... I could just make one that would suit my needs much better than what you posted for much less. The reason the one I posted would work is that it is low profile, so I could have that in the back of my cab without having to pull it off the wall very far. The Phresh Filter would require a huge space behind the cab.

And umm... I know it's for water. That's why I said "it is for water". But I figure activated carbon is activated carbon, and the air flowing through it would get cleaned regardless.


If that actually would not work, I think I'll use AC vents lined with this:
http://www.synfil.com/item--Cut-to-Fit-Carbon-Prefilter--cut_to_fit_carbonprefil.html

 

[bongoie]

Interesting , cant figure the link out , at first i thought it was from a cooker hood = the black material used as a filter , thats whot i have on my intake

Yes activated carbon is activated carbon , the granules in my bought filter are roughly six milimeter , that's a quarten inch ish for you .

 

[resin_lung]

No, it wont work.

 

[Architechno]

Interesting , cant figure the link out , at first i thought it was from a cooker hood = the black material used as a filter , thats whot i have on my intake

Yes activated carbon is activated carbon , the granules in my bought filter are roughly six milimeter , that's a quarten inch ish for you .

Which link cant you figure out? the home depot one or the cut-to-fit filter? I think the cut-to-fit one is the shape of a normal AC filter but filled with carbon.

 

[Architechno]

No, it wont work.

Can you elaborate on why it will not work?

 

[resin_lung]

water pressure vs air pressure.

 

[green-thumb]

it would probably take an air compressor to move enough air in the water filter. Avg water pressure is 30psi where I am. avg fan pressure is less than 1psi boost (car superchargers run 1-2psi)

The second link will work. It is a carbon impregnated filter material (no granules in it).
It is cheap and effective but will require replacement more often. I would make a simple box to place several layers of this across the vent - covering the entire opening. the more layers the better as long as it does not restrict the airflow too bad. 2-3 layers should be sufficient for a small grow.

 

[Architechno]

water pressure vs air pressure.

DAMN, I was hoping you were just giving me a hard time and it wasn't true. Oh well. Thanks much.

 

[Architechno]

avg fan pressure is less than 1psi boost (car superchargers run 1-2psi)

Thanks much for the rest of the help but.... Umm... ...I am a car guy. Superchargers and turbochargers run between 7 and 30 psi, natural atmosphere is already 14.5, which is 1 bar. I think bar is what you're thinking of. A 1 bar supercharger would be one that runs at 14.5 psi above atmospheric pressure, which is a reasonable street level.

 

[smokinshogun]

-

 

[green-thumb]

Thanks much for the rest of the help but.... Umm... ...I am a car guy. Superchargers and turbochargers run between 7 and 30 psi, natural atmosphere is already 14.5, which is 1 bar. I think bar is what you're thinking of. A 1 bar supercharger would be one that runs at 14.5 psi above atmospheric pressure, which is a reasonable street level.

I thought that looked funny but couldn't figure out why.
Thank you, i get crossed on measurements sometimes.

 

[ScrubNinja]

re: http://www.synfil.com/item--Cut-to-Fit-Carbon-Prefilter--cut_to_fit_carbonprefil.html

It doesn't actually say that it's activated carbon. All it says is it's a pre filter for a carbon or charcoal filter.

I think you are looking for something more like this but I still think there's no substitute for pushing air through tight carbon granules.

 

[Architechno]

re: http://www.synfil.com/item--Cut-to-Fit-Carbon-Prefilter--cut_to_fit_carbonprefil.html

It doesn't actually say that it's activated carbon. All it says is it's a pre filter for a carbon or charcoal filter.

I think you are looking for something more like this but I still think there's no substitute for pushing air through tight carbon granules.

Well I wound up not using that... instead Im going to use this:
http://www.homedepot.com/h_d1/N-5yc...splay?langId=-1&storeId=10051&catalogId=10053

On the box it says "activated carbon pre-filter" so I think it should work. I'm also going to order some vaportek disks for safety. In the future I will make my own canister filter with proper activated carbon granules, but for now this will do.

 

[green-thumb]

one quick and cheap carbon filter that would also work is to put some flex-duct or an elbow on your vent so it points down then cut both ends off a can that is near the same size put a stocking over the bottom end and put 1-2inches of activated carbon in it and attach it to the vent.

It's not pretty but it works in a pinch.

a tip is to crush the carbon before adding it (more surface area to react)

 

[Architechno]

one quick and cheap carbon filter that would also work is to put some flex-duct or an elbow on your vent so it points down then cut both ends off a can that is near the same size put a stocking over the bottom end and put 1-2inches of activated carbon in it and attach it to the vent.

It's not pretty but it works in a pinch.

a tip is to crush the carbon before adding it (more surface area to react)

that sounds like a great way to make a filter in a hurry, like if a plant suddenly starts smelling in a wekk.

But also, as far as the crushing goes, I think that is actually the opposite of what you want to do. If you read that linked article (I know, its very heavy reading, I didnt even read the whole thing paragraph-for-paragraph and I have a masters) you will see that most of the "surface" area that makes the carbon "activated" is within the granule, in tiny pits and holes and crevices. So by crushing it, you may wind up compressing most of this surface area closed! Something to think about...
What I may do with my used granules however is crush them up nearly into a powder, and see if then the life of the carbon can be extended by exposing new area when the old ones are filled with microscopic shmutz.

 

[green-thumb]

good point, I should have been more clear.

I usually grind mine in a coffee grinder (if I buy the cheap stuff) so it is not actually crushing it.

but be careful of the dust, don't inhale it.

I have also found that if you take carbon powder and mix it with some water into pudding thickness then heat it to evaporate the moisture out (make sure you have some bubble action but not too much) you will end up with a very reactive sponge-like brick that works great in reef tanks and I don't see why it wouldn't be useful for growing.

 

[ScrubNinja]

So by crushing it, you may wind up compressing most of this surface area closed! Something to think about...

Air gaps is what you don't want. The carbon filters the air, air won't filter air. Commercial filters get shaken and shaken to compress the granules as tight as possible. In my opinion it's why any foam mat type of filter will never compete seriously with a granule filter - They're like 90% air.

Green-thumb: very interesting.