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odor control?
- Thread starter adc702
- Start date
julsbagell
Member
they only supplement can filters, not even close to effectiveness.
I'm having some odor problems my damn self if anyone can help me. I have pre assembled box that I bought (i know i know) with a carbon filter and ozone generator on the back of it. I never noticed a problem, but my sister came to visit this week and as soon as she walked in she was like "whats that skunk smell" and then a friend of mine came over today and was like "are you growing weed in here, it smells like skunky weed" I noticed a smell, but it didn't smell like weed to me. Maybe its just because its gradually increased in intensity and since i've been around it since the beggining, I don't notice it. Anyway, is it possible the carbon filter these jerkoffs put on there is ineffective? I was thinking that air might just be leaking out from other cracks and such in the box because the filter has too much resistance. I have two small intake fans, and the exhaust fan with the filter on it is a bathroom exhaust fan. the intakes are like 115 cfm... I think. If anyone can suggest anything I would be much appreciative, as this is suppost to be a stealth grow.
ozone and carbon is the way to go.. I never realized how powerful ozone is. with a carbon filter there is literally no smell. I too was havin issues with smell on my last grow with a carbon filter.
B
bighogg
I agree that ozone and activated charcoal, aka carbon, are the best answers for odor. Remember that Ozone is harmful to the lungs and should be vented or off while you are in the room. It takes about 30 minutes for it to breakdown into oxygen, then it's safe.
You can eat activated charcoal so it is much less toxic. Keep the humidity low for the activated charcoal, it doesn't work as well with humidity above 50%. Buy it in bulk from a credible retailer on Ebay for cheap. Build your own housing to hold it and add a inline vent designed to pull a load. Relatively cheap, and just as good as anything in a laboratory!
For the paranoid an industrial air neutralizer can be added outside the grow area or in line model with exhaust tube.
You can eat activated charcoal so it is much less toxic. Keep the humidity low for the activated charcoal, it doesn't work as well with humidity above 50%. Buy it in bulk from a credible retailer on Ebay for cheap. Build your own housing to hold it and add a inline vent designed to pull a load. Relatively cheap, and just as good as anything in a laboratory!
For the paranoid an industrial air neutralizer can be added outside the grow area or in line model with exhaust tube.
Kenny Lingus
Active member
HI!
I recommend both if growing real stinkers. My plants reek through the carbon-filter and 18meter down in the backyard when the weather permits it. I vent my 600HPS 4*4ft home-box with a 200m3/h carbon-filter using an RVK 125-225m3/hr speed/temp controlled.
I have another can33 and RVK160-XL (770m3/h). The CAN33 is rated for 350m/h exhaust, and up to 700m3/h if scrubbing. maybe I'll need a bigger filter, but the home-box only has a tight 125mm textile flange. so I will need to modify or reduce the filter... Or maybe I can make a mixing zone that I expell all filtered growroom air into and the filter this through the larger CAN33 and outdoors. Dual filtering must help, but I am also considering Ozone as it probably won't make such a noise as double fan/filter system will.
@ GROWERGONEWILD: Will you enlighten me on the whole ozone thing? (I don't know much, and can't even consider which unit I'll need or anything. I just know that I do not wanna hurt any neighbouring children or pets, or my self or loved ones. (The thought was to make a sealed box where used and scrubbed air will be sent and blended with the ozone on it's way to passively exhaust by the pressure from the incoming fan(s). I think of building the case/chamber of MDF/tree -cheapest one if useable- paint it down with some full sealing paint that can stand ozone treatment.
I recommend both if growing real stinkers. My plants reek through the carbon-filter and 18meter down in the backyard when the weather permits it. I vent my 600HPS 4*4ft home-box with a 200m3/h carbon-filter using an RVK 125-225m3/hr speed/temp controlled.
I have another can33 and RVK160-XL (770m3/h). The CAN33 is rated for 350m/h exhaust, and up to 700m3/h if scrubbing. maybe I'll need a bigger filter, but the home-box only has a tight 125mm textile flange. so I will need to modify or reduce the filter... Or maybe I can make a mixing zone that I expell all filtered growroom air into and the filter this through the larger CAN33 and outdoors. Dual filtering must help, but I am also considering Ozone as it probably won't make such a noise as double fan/filter system will.
@ GROWERGONEWILD: Will you enlighten me on the whole ozone thing? (I don't know much, and can't even consider which unit I'll need or anything. I just know that I do not wanna hurt any neighbouring children or pets, or my self or loved ones. (The thought was to make a sealed box where used and scrubbed air will be sent and blended with the ozone on it's way to passively exhaust by the pressure from the incoming fan(s). I think of building the case/chamber of MDF/tree -cheapest one if useable- paint it down with some full sealing paint that can stand ozone treatment.
Yeah, i have a carbon filter with an ozone generator on it, but people are still telling me it smells. I bought the carbon filter, could it be a piece of shit? they aren't very complex. Maybe air is leaking out of other parts of the box and bypassing the filter? what do you all think?
Kenny:
Ozone is an irritant. One thing that I noticed is that even in low concentrations it tends to irritate the eyes. Ozone works by oxidizing odor compounds.
Ideally I want to mix ozone with my treated scrubbed air but right now I just run it in the house with a fan blowing it out towards the house. and on the other side I turn it up as high as I can tolerate it..
Secondly dont let it build up in an enclosed room, Ozone has an antiseptic smell of its own, its a bit irritating.
Thirdly you need to mix ozone with the air, I've noticed better results, less ozone smelll and seemed to improve the effectiveness of odor elimination.
I guess odor control is a three step approach
-Dilution, with plenty of air.
-Absorption of odor @ the source using carbon.
-Elimination of odor using ozone.
Alot of people swear by carbon filters, but they do not work all the time, the last grow I relied on carbon filters and it wasn't effective. For the less smelly strains they may work..
Ozone is an irritant. One thing that I noticed is that even in low concentrations it tends to irritate the eyes. Ozone works by oxidizing odor compounds.
Ideally I want to mix ozone with my treated scrubbed air but right now I just run it in the house with a fan blowing it out towards the house. and on the other side I turn it up as high as I can tolerate it..
Secondly dont let it build up in an enclosed room, Ozone has an antiseptic smell of its own, its a bit irritating.
Thirdly you need to mix ozone with the air, I've noticed better results, less ozone smelll and seemed to improve the effectiveness of odor elimination.
I guess odor control is a three step approach
-Dilution, with plenty of air.
-Absorption of odor @ the source using carbon.
-Elimination of odor using ozone.
Alot of people swear by carbon filters, but they do not work all the time, the last grow I relied on carbon filters and it wasn't effective. For the less smelly strains they may work..
Last edited:
B
Bubble Puppy
This run im shuttin off my scubber and running straight ozone with no exaust in a closed room ,ill have a fan at the doorway mixing the air up .
I wanna totally kill the smell without killing the plants,right now ozone runs for 45 seconds every 30 minutes .Im tuning it to get that perfect sweet spot.
Carbon filters only work temporarily,i think ozone tailored to specific applications and used properly will work standing alone..
I wanna totally kill the smell without killing the plants,right now ozone runs for 45 seconds every 30 minutes .Im tuning it to get that perfect sweet spot.
Carbon filters only work temporarily,i think ozone tailored to specific applications and used properly will work standing alone..
Kenny Lingus
Active member
OK, I need to make clear a few things. I DO know most of the usual stuff regarding ozone, it's hazards and its usability... At least from what one can read up on easily, and from experience with ionizers and regular air-purifiers. Also knos the fresh smell of dilute ozone after heavy/close strikes of lightning and rains.
I wanna inject the O3 directly into the expelled air -immediately after extraction- or maybe by releasing it just barely inside the growroom right into the air-suction from the exhaust filter. This treatment WILL then get some time when either;
1) Being blown into a 3x8x8 buffer zone that is gonna be vented in massive spurts, or in moderate amounts slow and continuosly.
2) Passing through ducting and 1-2 larger blending chambers
3) Blowing steadily in extra lengthy and girthed ducts that are bent to cause turbulence and also slow the outflow on its way outdoors where further dilution will be pretty instant and at great rates)
Dual filtering still an option, but I'd love to hear some more experienced peeps with opinions on the whole subject.
Carbonfilters are less effective in humidity over 50%, and some filters actually are improperly filled or stored and loose the activation/effect during storage and shipping. I've also found that my small filters are wearing out in 6-10months, and dusty environment make it worse. Real slow air exchange is really a help, but I find the real dank shit run straight through on it's ripe days...
-But back to the ozone folks! What kinda O3-gens are you guys using?
I've considered 3-4different types. An AirMaid and another Evolution "Breeze"-something that I saw in a growshop, but they had very little info about the units. Online I've seen one AirMaid for having installed in garbage-rooms, one in-house unit that can produce up to 200 milligram per hour or so, and then it is the best/professional option. A more advanced unit for adding ozone into ducting. Website says it suited for use poultry-production and in stables if combined with carbonfilter, and it was also recommended used hospitals, odorous industry, and for stove hoods of large kitchens where the scent and fat need to be broken down to easily diluted vapor forms that won't clog up the vent/filter systems and increase the fire-hazard. The pro-unit is costy and has unfortunately 110V, but it is adjustable by both flow and timed bursts givig a specter at 80 - 2.000 milligram per hour. -You know if it can be ran on 220-240V with a converter, or is it the wrong frequency too then. We have 50Hz in western/northern/central parts of continental Europe, and US has 60Hz which make it impossible to toggle a few appliances like motors and certain bulbs...)
I'd love any educated input here. Running costs, etc. Is a Vaportec Optimum4000 just as fine even though harder to get???
-If anyone know a little about rates needed for a little 1200watt continuous grow vented at about 450m3/hour please shout out!!! (I do not wanna feel my way by using the amount of tears I produce or times I feel like coughing per minute for that matter! LOL)
I wanna inject the O3 directly into the expelled air -immediately after extraction- or maybe by releasing it just barely inside the growroom right into the air-suction from the exhaust filter. This treatment WILL then get some time when either;
1) Being blown into a 3x8x8 buffer zone that is gonna be vented in massive spurts, or in moderate amounts slow and continuosly.
2) Passing through ducting and 1-2 larger blending chambers
3) Blowing steadily in extra lengthy and girthed ducts that are bent to cause turbulence and also slow the outflow on its way outdoors where further dilution will be pretty instant and at great rates)
Dual filtering still an option, but I'd love to hear some more experienced peeps with opinions on the whole subject.
Carbonfilters are less effective in humidity over 50%, and some filters actually are improperly filled or stored and loose the activation/effect during storage and shipping. I've also found that my small filters are wearing out in 6-10months, and dusty environment make it worse. Real slow air exchange is really a help, but I find the real dank shit run straight through on it's ripe days...
-But back to the ozone folks! What kinda O3-gens are you guys using?
I've considered 3-4different types. An AirMaid and another Evolution "Breeze"-something that I saw in a growshop, but they had very little info about the units. Online I've seen one AirMaid for having installed in garbage-rooms, one in-house unit that can produce up to 200 milligram per hour or so, and then it is the best/professional option. A more advanced unit for adding ozone into ducting. Website says it suited for use poultry-production and in stables if combined with carbonfilter, and it was also recommended used hospitals, odorous industry, and for stove hoods of large kitchens where the scent and fat need to be broken down to easily diluted vapor forms that won't clog up the vent/filter systems and increase the fire-hazard. The pro-unit is costy and has unfortunately 110V, but it is adjustable by both flow and timed bursts givig a specter at 80 - 2.000 milligram per hour. -You know if it can be ran on 220-240V with a converter, or is it the wrong frequency too then. We have 50Hz in western/northern/central parts of continental Europe, and US has 60Hz which make it impossible to toggle a few appliances like motors and certain bulbs...)
I'd love any educated input here. Running costs, etc. Is a Vaportec Optimum4000 just as fine even though harder to get???
-If anyone know a little about rates needed for a little 1200watt continuous grow vented at about 450m3/hour please shout out!!! (I do not wanna feel my way by using the amount of tears I produce or times I feel like coughing per minute for that matter! LOL)
Kenny Lingus said:
If you look at some of the dedicated o3 units that are only for odor control and not disguised as some air cleaner they have an inlet and the air moves directly over the electrical o3 grid.
So I would look for something along those lines of design.
Secondly, there are units that do a burst mode or have adjustable outputs. such as fan speed, and constant o3 output, these are the controls that I think are necessary.
For my little cabinet grow I use an Ecoquest Flair Air Purifier, too bad they dont make these anymore. It can easily deodorize 2000 square foot. I do not know the MG/HR rating but when I push the sanitize function, (maxes out the fan and 03 output) I literally have to leave the room because I can hardly stand it. I have yet to test it out on a really stinky grow, my double strawberry diesel, itsn't that smelly.. my last grow, a skunk hybrid I could have used that.
Looking at a professional 03 unit at the store the other day, what I saw was the inlet air entered at the top of the unit took a sharp 90degree turn and was sent over the grid for treatment, the only thing on the unit was a dial to adjust 03 output.
So I'm assuming here that on a true inline duct unit, there is some type of mixing baffles in the plenum. Secondly, you have to provide the ventilation "push" of some sort. Thirdly, 03 output needs to be adjustable, not just timed.
Like I said I cant give _exact_ o3 mg/hr ratings for how much you are using but I would buy a bigger unit and just keep it turned down.
Kenny Lingus
Active member
GGW: Big Thanks for the reply mate!!! (I'll look around more.) Only 2-3 kinds available in mycountry you know...
