of course you could make it smaller. just use a smaller container and your computer fan. that's the beauty of the idea. very versatile.

this is a great idea but wont work for me because i live in a apt and it would have to be in my grow dresser and some how use duct or somthing to vent it out plus it would have to be very quiet.anyone have ideas

this ONA
is there a name brand?

hmm still no ideas huh...

Im building a box now and beacuse I saw this post I want to see if I can get this to work for me so take a look at my pic and post feedback.If it will work or not or some tips..anything
thanks

bumpity for a buddy

I'd be interested in hearing from people who have built different sizes, perhaps a 3 gallon version or a 1 gallon version (quite small). WIth the reports that the 5 gallon version can kill the skunkies smell in 5 minutes entirely, I would bet that a much smaller version would be just as effective.

I figure the following stats are important:

Containter (bucket) size
Fan size
Amount ONA
Amount Soil Moist
Time between ONA replacement
Level of Effectiveness (some smell, no smell, strong smell, etc)
Kind of Weed (and indication of natural ordor)
Modifications to basic design

I think I'm going to build a 2 or 3 gallon version and see how that treats me, but I'd love to see what people can do with this.

Hey guys, good topic, i plan on making one. Am planning on just putting the ONA system in my bedroom where my grow closet is. would that work fine, don't have to actually have it IN the grow room do u?

No, as I understand it that should work totally fine, and may even being better. For those who have used these in a grow room, have you noticed an effect on the final product, i.e. is the bud still stank, or bland?

Doesn't seem to affect the final product at all. (How could it?!)

Anywayz, smaller buckets should work fine..

I have even used 20 parts water to 1 part ONA and only had to change it once a month.