home made carbon filter

retrofuzz · Mar 29, 2013

Hi riu ppls

im getting some ideas together for a home made air filter, been looking at activated carbon/charcoal which is quite pricey.. im wondering if using bog standard coal or charcoal would work for a small-medium grow.. ive left lumps of coal in a dish to get rid of fridge smells and it worked,got me thinking. is activated carbon just flash talk for crushed up coal?

Figong · Mar 29, 2013

Yes, and no.. it is in that it's coal.. but there's a special process it goes through to create many many pores of a small volume that increase the surface area greatly for 2 types of odor control, being chemical reaction or adsorption. The only way to get something better would be if it packed chem reaction, adsorption and absorption. (Of which the ONA concentrate does all 3, as an aside)

Slipon · Mar 29, 2013

IMO, use the 50-100$ on a filter..

really wort the money, will remove 99,9% of the smell and will last your +1 year (depending on your humidity, high RH is not the best for the carbon)

and they can be refilled afterwords, its possible to buy 10 kg buckets with active carbon online for around the same price as a new filter, and Im sure there is enough to last you years and years

I may just add that Im a metal worker/blacksmith so would be pretty easy for me to make sumthing, actually I did once

that a pack of two replacement filters for a cooker ventilation I got at my local "Walmart" for around 12$ full of active carbon, but I guess there is a different, since it never got to work 100%
I guess it take like 80% of the top, so if you only have one plant and no neighbors and a glass of Ona gel for flowering it might work ok for you, but in the end you used a lot of time and effort and some money to safe very little money and you end up with sumthing that don't work 100%, not worth it, agin IMO, use the 50$ on a small filter

Figong · Mar 29, 2013

@Slipon - as for the ONA - I don't use the gel.. and highly recommend the concentrate. I wouldn't just use a glass of it.. I recommend it's in a bucket, with soil moist, and a fan as part of a DIY setup that looks like this:

With a fan on top that's fitted to blow down into it, and 'push' the ONA through the holes drilled. (This is not a pic of mine, this is from online but this is a pic from the tutorial that I used)

retrofuzz · Mar 29, 2013

Slipon said:
IMO, use the 50-100$ on a filter..

really wort the money, will remove 99,9% of the smell and will last your +1 year (depending on your humidity, high RH is not the best for the carbon)

and they can be refilled afterwords, its possible to buy 10 kg buckets with active carbon online for around the same price as a new filter, and Im sure there is enough to last you years and years

I may just add that Im a metal worker/blacksmith so would be pretty easy for me to make sumthing, actually I did once

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that a pack of two replacement filters for a cooker ventilation I got at my local "Walmart" for around 12$ full of active carbon, but I guess there is a different, since it never got to work 100%
I guess it take like 80% of the top, so if you only have one plant and no neighbors and a glass of Ona gel for flowering it might work ok for you, but in the end you used a lot of time and effort and some money to safe very little money and you end up with sumthing that don't work 100%, not worth it, agin IMO, use the 50$ on a small filter

yeh my space is pretty small, even so buying one is seeming the better option. i was hoping my brother could help out, he makes ally car bits (radiators n coolers etc) but getting a favour from family can be an effort ey haha

JSJ · Mar 29, 2013

Figong said:
@Slipon - as for the ONA - I don't use the gel.. and highly recommend the concentrate.

What is this ONA shit???

Figong · Mar 29, 2013

It's a concentrate or gel, depending on which concentration of it that you buy that's designed to completely destroy odors with the proper application / setup.. tis good for complimenting filters and pre-filters so you burn through filters less, as well.. or if you're having family who may not know you smoke over in 2 hours and you just smoked one.. grab the bucket, plug it into the living room and kick the fan on high. Presto, no more evidence.

home made carbon filter

retrofuzz

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Figong

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Slipon

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Figong

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retrofuzz

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JSJ

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Figong

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