Mine is still working for less than $10.00 no smell at I don't know what could be better than that.

I was going to make that one until I came up with the coffee can and Panheads carbon bag.

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Last Grow 12/12 From seed to Harvest (1 oz Honies)

Randy's FAQ's for New Growers

This was added to this :

The ultimate Odour control thread

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that link is very cool, Thanks Arrid +1rep.

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Last Grow 12/12 From seed to Harvest (1 oz Honies)

Randy's FAQ's for New Growers

The difference between an inline "stuff" filter and a commercial style carbon filter is
the way air moves through the carbon. In an inline filter like you have, the air is forced through by an inline fan as pressure builds up in the tube behind the carbon, this is a large volume of air moving through a restrictive space and will follow the path of least resistance, this will lead to the creation of air channels in the carbon. The thinnest areas of carbon will be exposed to the most air at greater speeds while a large amount of carbon sits mostly unused in more restrictive areas of the carbon layer.

This also means the filter only works vertically as well. This is a big deal for me as I move filters around and expect them to perform in different configurations.

The commercial style filter found here is meant to be at the end of an exhaust system. It filters air by forcing it into a chamber where the additional pressure from the fan at the back causes the air to passively diffuse though the carbon. Again this is a larger amount of carbon, the air moves through more slowly thus filtering better, lasting longer. Speaking generally your filter moves a lot of air through a little surface of carbon, while this one moves a little air through a huge surface of carbon.

And its way more scalable.

Im not saying your filter dosnt work, but from someone with 4 big plants to someone with 50, this filter has you covered for barely 5 times the price of the carbon coffee can, and it looks trick.

True, but this thread is for a cheap filter that works. About once a mounth I take the filter bag out for inspection so I don't think I'll get the tunnel.

The tunnel tip is a good thing to keep in mind. So Shake up the filter weekly.

I also showed the can in the vertical position, I think this filter would be best used in the up right position but the bag is tight in the horiz. so it may work if the user is carefull in filling. I just assumed people would only use this in the upright.

I only have 3 large pants and 6 small in the room the filter is still working after 2 months. So for my grow it is cost effective.

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Last Grow 12/12 From seed to Harvest (1 oz Honies)

Randy's FAQ's for New Growers

Ok, I changed yhe filter this weekend. I old one was still working \.

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Last Grow 12/12 From seed to Harvest (1 oz Honies)

Randy's FAQ's for New Growers

Love DIY!!!

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So does that mean it is better to 'push' air through a filter than to 'pull' it through?

(I think that's what I read)

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check out my hydro grow experiment:
http://www.rollitup.org/hydroponics-...t-know-if.html

Link Broke?

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check out my hydro grow experiment:
http://www.rollitup.org/hydroponics-...t-know-if.html

Where can the activated charcoal be purchased?

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http://www.rollitup.org/grow-journal...real-grow.html
^^ My grow journal ^^