Ozone Generator Question?

lostNug

Well-Known Member
Whats up guys?

I used to be very active on this forum years ago, took an extended break and now I am back setting up a new location (grow journals coming soon...)

Need some input on running a ozone generator in a sealed room for preventative maintenance. 2000 cubic foot room.

I just picked up this guy https://www.amazon.com/gp/product/B008VTWVBS/ref=oh_aui_detailpage_o06_s00?ie=UTF8&psc=1

How long do I run it? Run it with exhaust on or off? Can I run it with plants vegging in the room? How often?

I've read everything I could and have searched the forum. Hoping to hear from someone with experience.
 

Clown Baby

Well-Known Member
Running this for preventative maintenance? what will ozone prevent in the grow room?

Ozones a strong oxidizer and can enter stomata and cause problems. You should probably only run this in your exhaust line. or outside of your grow room. google ozone effect on plants.
 

OldMedUser

Well-Known Member
With a sealed room you shouldn't need ozone as all the stink is contained. It can damage your plants by burning out the stomata as Clown Baby pointed out. Looks like mite damage just in case you do run it. Burns out your lungs as well so you don't want it running where you breathe.

For it to be effective in killing odors in your exhaust it needs about 30ft of hose to run thru to have time to oxidize the odor molecules before it gets blown outside. I have one just like yours and was going to get an inline carbon filter so I could hang that 30ft of 6" hose around the ceiling of the grow room with the ozone generator at the far end and the carbon filter just before the exhaust vent. That way there would be a lot less stink for the carbon filter to deal with and it would last a lot longer. It would be plugged into my heat/rh fan controller and run whenever the fan got tripped.

The inline filters are almost twice as expensive as the can filters so I went with an oversized can filter that still cost almost $200. Good tip from the store I got it from. Wrap half the filter with Saran wrap and when it starts allowing smell thru switch to the other half. Hopefully will get a few years out of it before it needs replacing.

I also have a couple Living Air ozone machines. They look like a speaker box and used to be used in restaurants etc to keep the air smelling fresh back when smoking was allowed. They also have an ion generator built in to help remove particulate matter like smoke, dust etc. Then they started having waitresses and others that spent all day in that space having lung problems. Not only were they breathing second-hand smoke but getting hit with the damaging effect of ozone. I have a 3-plate commercial one going in the basement outside the grow room to kill the mold as it's always damp down there and we've had a couple flood events too. Works good for that. Compared to ozone generators used for grow room odors they are very low output but you can smell the O3 down there and the mold is all dead.

:peace:
 

lostNug

Well-Known Member
Thanks for in depth replies guys.

Good tip on the inline filters!

Clown Baby: It would prevent mold.

Oldmeduser: I'm glad to be finally running sealed rooms so my filters can last a bit longer, so no more dealing with swapping out giant filters of the wall haha. My new location is a grower friendly area also so smell is not an issue.

So since smell is not a concern, I am more looking to kill any kind of mold that enters the space or could already be in the room. The room is sealed, but I know due to me going in and out so much with very damp climate outside there could be some issues. I will definitely hang one in the hallway between the rooms.

In between harvests when I clean out the rooms I want to crank on the ozone generator and kill everything in the room and I have also been told that you can run the generator with plants in veg (no flower) for short bursts at a time to not have effect on the plants, but kill any mold or anything else harmful. Maybe run it for 10 minutes or so and then turn on the exhaust for 30 min? Something along those lines?
 

chemphlegm

Well-Known Member
Thanks for in depth replies guys.

Good tip on the inline filters!

Clown Baby: It would prevent mold.

Oldmeduser: I'm glad to be finally running sealed rooms so my filters can last a bit longer, so no more dealing with swapping out giant filters of the wall haha. My new location is a grower friendly area also so smell is not an issue.

So since smell is not a concern, I am more looking to kill any kind of mold that enters the space or could already be in the room. The room is sealed, but I know due to me going in and out so much with very damp climate outside there could be some issues. I will definitely hang one in the hallway between the rooms.

In between harvests when I clean out the rooms I want to crank on the ozone generator and kill everything in the room and I have also been told that you can run the generator with plants in veg (no flower) for short bursts at a time to not have effect on the plants, but kill any mold or anything else harmful. Maybe run it for 10 minutes or so and then turn on the exhaust for 30 min? Something along those lines?

it will not prevent mold. it is not for use inside the grow room. bleach spray kills molds in cleanup.
if you want to love on one then put it in your exhaust.

proper temperature/humidity controls, quality lighting,good feeding habits, cleanliness..those prevent mold
 

lostNug

Well-Known Member

it will not prevent mold. it is not for use inside the grow room. bleach spray kills molds in cleanup.
if you want to love on one then put it in your exhaust.

proper temperature/humidity controls, quality lighting,good feeding habits, cleanliness..those prevent mold
Thanks for the info man. I know how to prevent mold. Check out Chlorine Dioxide. Even better then bleach.

I beg to differ though that Ozone is not used for mold. Check out this article. I copy and pasted the important parts. Here is the link, https://www.420magazine.com/forums/problems-pests-and-disease-control/56750-ozone-ultimate-decontaminate.html

So it seems like it is possible to use generator inside a room if I wanted too in small amounts without hurting the plants. I think I will just hang this thing in the hallway and have my intakes suck the treated air from the hallway into the rooms once in a while when I exchange the air.

Ozone: The Ultimate Decontaminate

By Richard Lee

Ozone’s natural properties make it an intense, thorough and non-chemical way to destroy odor, mold, mildew, bacteria, algae, yeast, fungus, pollen and hydrocarbons within the hydroponics environment. At ambient temperatures, ozone is the only substance that can be used as a complete sterilizing agent and substitute for extreme heat. Microbial pathogens, toxic to people, are unaffected after intense heat sterilization because they adhere firmly to effected areas and can only be removed by exposure to high temperatures for prolonged periods of time. Ozone, with its exclusive ability to completely weaken and destroy these pathogens has the obvious advantage over other sterilization processes. An ozone level of .01ppm to .04ppm will completely decontaminate a Bioclean room which is the optimal sterile environment for the culturing of orchids.

Microorganisms can never become resistant to ozone and no residue is ever left on plants or surfaces.

For hydroponics applications it is important to remember that ozone is first and foremost a powerful, and in higher doses, an aggressive oxidizer. It must always be monitored and checked for optimum usage results. However, the use of ozone to remove odors, bacteria, yeast and other unwanted microorganisms is highly effective and environmentally friendly when done properly.

With both of these ozone generating processes, the ozone is injected into an air stream or waterway where it proceeds to disperse and attach itself to pollutants and contaminants, thus destroying them upon decomposition. In combination with ozone generating units, fans with a lower cubic feet per minute (CFMs) can be used and duct models use smaller fans than other filter media.

In making a decision about which system is best for your purposes, consider not only the square footage of the targeted area but its general contents and surface area as well. Calculate how much ozone will be required for the desired outcome and consult with and experienced and knowledgeable manufacturer. Also look for cost efficiency and reliability factors when choosing the system that is right for you. Ozone generating units are light weight and can be easily shipped. Also, any reputable ozone generator manufacturer will provide an ozone detector to ensure safe levels of O3 are present.

In hydroponics applications, ozone is in a class by itself in comparison to other air filtration, grow-room sanitizing or crop preservation methods. Ethylene filters used mostly for produce storage, are made to absorb ethylene gas within a confined area and need to be replaced monthly which can be costly. Ionization machines which place a negative charge on air particles causing them to gravitate toward floors and surfaces within a room only move the contaminants around. Carbon filters clean the air that passes through them and unlike ozone, cannot destroy large amounts of iron, manganese, nitrates or chlorides.

In comparison to other air filtering procedures, ozone is unequaled in its ability to completely destroy the source of unwanted contaminants and odors. Ozone oxidizes natural organic compounds like acetic and oxalic acids, herbicides, detergents and pesticides. Unlike carbon filters ozone can oxidize inorganic elements such as sulfides, iron and manganese and nitrates in water. Ozone is also used to slow the ripening of fruits and vegetables by eliminating ethylene gas and odors that are produced by decay. It also kills spiders and mites as it attacks cell walls and inner components of organisms, breaking down membranes with its oxidizing procedure and destroying them. It can also be used to clean used carbon filters.

It is interesting to note that the high humidity content in a grow-room or green house, makes the ozone oxidizing affect that much more efficient. In areas with over 50% humidity, ozone is at its most effective state as the targeted surfaces and microorganisms become more porous therefore easier to penetrate when they are moist. With ozone, humidity speeds the destruction of the fungi, viruses and bacteria that cause odor. In addition to all of its other benefits to the hydroponics industry, ozone is the ultimate odor and pathogen removal treatment for high humidity environments.


Researched and written by Richard Lee

References: UC Davis, Vegetable Research and Information Centre, Ozone/Oxygen: Article prepared by Martin A. Majchrowicz, “Ozone” by M. Horvath, L. Bilitzky, and J. Huttner, “The Use of Ozone in the Cold Storage of Fruit” by J. Kuprianof, Z. Kaltertchnik, “Removal of Ethylene from Storage Atmospheres” by J.W. Colbert, “Bactericidal Radiation” by A.W. Ewell, “Ozone, Pharmaceutical Sterilant of the Future” by Bill Burley, “The Health Implications of Water Treatment with Ozone” by Carmichael, “Ozone, The Process Water Sterilant” by Nebel C and Nebel T., “Ozone Decontamination of Bioclean Rooms” by T. Masaoka, “Application of Ozone from Sterilamp in Control of Mold, Bacteria, and Odors” by Rudolph Nagy, “The Control of Microorganisms in Food Storage Rooms” by W.L. Mallmann and E.S. Churchill.
 

chemphlegm

Well-Known Member
I knew you'd made up your mind, and when we do that we can hardly see beyond, but I wanted to get my info to you first anyways, so I can sleep. no matter if you use it it or not its cool
I havent used bleach in my rooms since they were built in 08. no need here, never mold outbreaks on the spore cards, no pm or budrot . no ozone ever. it can be done, is done all the time.

best wishes
 

lostNug

Well-Known Member
Thanks. I already do all the preventive measures, but I feel like this is just one more measure that I can take especially in the new mold prone outdoor environment.
 

chemphlegm

Well-Known Member
if your conditions produce mold.... UV will not tip the hat for a save
Mold doesnt thrive for lack of ozone
mold requires very specific conditions to thrive, none of which are negated with ozone.
ozone will ruin your marijuana growing experience if used inside of your drying or growing spaces.
you've been warned
 

sallygram

Well-Known Member
I had an ozone generator, I forgot to turn it off one day (it would turn on for 5 minutes an hour) it killed any plants near it. After reading all the cancer warnings and seeing that I retired it.
 
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