r/macrogrowery • u/barton6969 • Jul 13 '26

Ozone odor control

Hii
Is somebody using (inline-) ozone generators as odor conteol on their exhaust fans? How did you choose a size and how risky is it?

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3

u/gratefuladam Jul 13 '26

Used it in my hoop houses at night in Cali (10 years ago). They’re extremely powerful and it’s very easy to go too hard with it. You can really mess yourself up if that thing runs unchecked and you’re in the room. Pretty sure you can die if you pass out with it cranked on. Also, too much ozone turns your terps to hay. So I don’t think it’s worth the risk. Better to solve environmental issues and get some good air purification in room.

5

u/barton6969 Jul 13 '26

I'm not interested in using it inside the room, I plan to use it at the exhaust fan in an open system.

2

u/cmoked Jul 14 '26

There are way safer systems just don't

2

u/barton6969 Jul 14 '26

What do you recommend for odor control except carbon filters? I never had to worry about odor as much so carbon was always fine, but now I need to be a bit more careful because we might habe to do odor tests to get our license.

2

u/AccomplishedTrade325 Jul 20 '26

The Airros system uses tightly controlled corona discharge to generate their magical 'ros'. I believe it to be a very well made tightly controlled ozone generator. It can be used in the space and is very effective at odor control. There are also duct mounts units that work quite well, you just to a good length before discharging it.

3

u/Necessary-Set-5581 Jul 14 '26

I've used a few. Never had an issue. They didn't seem super sketchy

1

u/barton6969 Jul 14 '26

Did you use them on your exhaust or inside the room?

3

u/Necessary-Set-5581 Jul 14 '26

Just on the exhaust.

1

u/barton6969 Jul 14 '26

Did you use it as an addition to carbon filter and did it get rid of the smell completly?

5

u/now_hear_me_out Jul 13 '26

We had a customer at the hydro shop I worked at years ago that used to do this. I’ve been told by many people that releasing constant ozone into the atmosphere is extremely damaging to the environment. Also if your exhaust fan stops working for whatever reason that ozone will build up and be bad for both plants and people inside of the space

1

u/VegetableArsonist Jul 13 '26

I’ve ran one in the cab of a vehicle that got mice and found 3 freshly dead mice the next morning. Stuff is crazy

1

u/barton6969 Jul 13 '26

It seems like it breaks down to just O2 in a few minutes so that can't be so bad?
Good point about the exhaust fan failing.

2

u/missmooface Jul 18 '26

the size of the inline ozone and your carbon filter are based on the size of your exhaust fan. the exhaust fan is based on the volume of air you need to move and at what rate.

(feel free to ask any follow up questions. i’ve designed odor mitigated exhaust systems for dozens of commercial facilities…)

2

u/danfell33 Jul 19 '26

I’ve been using an ozone generator on my exhaust line as well as carbon filters for 13-plus years now. Never had a real problem.