My take on it is the more pollutants it oxidizes, the faster it degrades into O2. Rule of thumb is approx 30-40 minutes in clean air. If one were to reduce the flow thru the duct and put one or 2 in the duct work, they should work well without a dangerous level of O3 collecting anywhere. Or vent to a lager semi-enclosed area and hang one or 2 in THERE, it should work as well.

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You can lead a Horticulture....But you can't make her think!!!!

wow great post. might actally look into getting one.

I believe they are useful, and good. Just that one needs to be aware of, and build around, their inherent dangers. Gasoline is a good, useful thing, and can be used and stored safely. Same applies here. Just use ones head when designing a system. To me, it seems like a great addition to an existing ventilation system. The only variable that would need to be found is how much moving air can they clean CFM wise without flowing air past them too fast to be cleaned, and adjust the CFM rate accordingly. The other option is to vent into a box (large dog house, under an enclosed porch, etc) Hang one or two in there, and let the clean air just flow out small vents. All ya want to do is avoid any high concentrations of O3 accumulating in an area that might spark, or that you would have some extended exposure to.
I don't worry about the smell in the house. The exhaust creates a negative pressure in the grow room. It's the vent OUTLET ya gotta worry about. I am torn between venting down the main sewer pipe, or a couple of these under the back porch enclosed area.

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You can lead a Horticulture....But you can't make her think!!!!

Interesting

Thanks for the info - I've been looking for this kind of write up all day!! I have been considering many of these Ozone generators but was concerned about the amount of oxygen it would be pumping back into my room and what it might be doing to the Co2 levels. Your info has put me off getting one as I don't have anywhere to pump the air to other than outside. Do you know of anything else other than the carbon filters to reduce grow room odor problems without potentially damaging your crop?

Even better, the lotus Sanitizing System, can find it everywhere. Some models are as low as $129.99 and as high as $169.99. This system puts the ozone into water where it is safe....mist it around and it will deodorize without giving you a headache and it is great for your plants too. Check out the website, once this unit adds the ozone into the water it becomes even more powerful than chemical cleaners, yet just water and oxygen, so use it to feed your plants and clean your stuff too. It is amazing....multiple award winning...

The ozone levels this machine puts out does it contain enough ozone to harm animals or people? Or does it even put out ozone. Thought I ask, I would consider buying this for my closet that way come flowering and harvesting stage smell will not be a issue

I thought i go with the oza gel. I heard good things from it

This is probably the only ozone machine on this site that is fully UL approved and EPA registered. That means that it does adhere to OSHA standards and does not emit ozone to the atmosphere, making it perfectly safe for animals, and humans. In water, ozone is perfectly safe...good examples...pools and spas are switching to this technology to eliminate chlorine. To get EPA registered means that we do work and do put enough ozone in the water. Just visit our website and check out all the awards and 3rd party testing that has been done. This is no gimmick, it is a product like the Aerogarden that you can buy at most of your favourite retailers...and online...
Can't see the gel working...ozone breaks down pretty quickly on its own...within an hour at the most. No way to package it and sell it off a shelf that I know of....that is definitely a gimmick.

I think it is interesting that the link for the item (very beginning of thread) says;

"O3 doesn't just mask odors; it removes them and then harmlessly converts into CO2 and oxygen".

Hmmmm, CO2,,, wonder if the CO2 can be recycled into the grow room for plant growth?

Just a thought.

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Semper in excretia, solon profundum variat!

I think people are really spazzing out about the whole uv filtering thing. I completely agree about the facts and what ozone does in high levels and I agree that it's silly when misinformed people go out buying ozone generators for a small op. However I bought a Uvonair 5000 unit which is specifically made for the hydro enthusiast. It says very clearly that you should use a timer with the unit. I use it in an upstairs spare bedroom and turn it on for 5 minutes an hour. No smell, no burn, lots of CO2.

SO my point is, it's good to guide people to research this topic and point them towards the right product, but I don't think the other extreme of saying "OMG OMG ozone will kill you and everything in your house, it'll cause cancer, your eyes will bleed out your skull and you'll burn your grow" is logical. It goes along with anti marijuana ppl who display similar misguided logic and claim that one can go crazy from 1 joint.