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Ona gel + carbon filters?

Tonygreen

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In the past I used one outside my room as a secondary line of defense, works great.

Lately I am looking for increased scent control measures. I have debated running with ona and carbon filters. Anyone have experience?

I was woried about the ona fuckin up the bud somehow so i did a search and say a couple threads. Most seem to say it wont mess with their dank goodness at all. So im thinking of throwing a ona block in the room this time as well as use outside for secondary blanket.

In my experience the smell seems to fall down especially in the winter idk why and zero smell underneath me is required no possible exception.

Im going with bigger filter system this time too but not convinced the scrubbers will knock out any chance of a scent trailing underneath me to lower levels.

Thoughts? Advice? Good or bad idea? Like I said did a search but not too much discussion on this set up.
 

Tonygreen

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My mans says no... Anyone else withexperience?
Don't put Ona in your room. Your bud absorbs the smell and gives your flowers a nasty taste. Ask me how I know.

Instead, use it in the rest of the house.

We started getting complaints about our taste. I was offended at first that my glorious product would have a problem with taste. A light bulb went on one day and I starting having a suspicion it was the Ona from the descriptions from friends. Had a friend with an amazing palette help me narrow it down. When we got to the Ona, he replied, "Yep. That's the smell and taste.".

And the feedback from folks was that the nasty flavor was gone when I took the Ona out of my room.

Sorry. Total aside. Just an FYI.
 

Tonygreen

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My mans says go for it...

I'm on my first grow and have been using ona blocks the whole way through and I've found them very efficient. I'm growing 5 plants of a smelly skunk strain and I found the ona block completely nuetralises the smell from the growroom. There isn't a strong odour from the blocks themselves after the first day or two you open it, so I very much doubt it affects the smell/taste of the plant. When my first ona block got used up after about two months the smell of the plants started coming back and they stunk! So the block didn't affect them at all, and it was in the middle of the five plants the whole time. I put a new one in since and it's killed the weed smell again.

I would highly recommend them or the gel if you're not in a position to install a carbon filter.

Hi sorry I wasn't clearer above. When I took the ona blocks out of the room and had no odour control (after having ona in the room for two months), the smell of the weed was just as strong and pungent as it would otherwise be. The ona didn't affect the smell of it at all. I haven't sampled the goods yet as I still have a few weeks to go so I can't say if it affects the taste or not but really highly doubt it. It's an odour nuetralizer, it doesn't do anything to the plants unless you actually apply it onto the plant. which I wouldn't advise.
 

Tonygreen

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Another +1?

plants cant absorb the ona particles that we smell. despite popular folklore, ONA will not affect the smell or taste of your finished product. since its comprised of natural oils, its non toxic to plants- period.

a few years ago, somone mentioned his grow tasted like the scent, but thats unfounded. upon discovering ONA and VAPORTEK, i ditched my carbon scrubber years ago and havent looked back. anyone who says these 2 odor neutralizers arent as effective as a carbon scrubber either havent tried them or are basing their opinions on heresay.

ONA PRO is something to behold. not only does it neutralize the odor, it doesnt have a suspicious smell itself. i place 1 can and 1 vaportek disc in my grow room, change them out every 2 weeks, odor problem solved like crossword puzzle.
 

Tonygreen

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+1...

I've used it in the room for years now, and never noticed any effect on plant growth or the end product.

Love the stuff, use it as my secondary odor control. I had a diy fan/bucket thing, but when it broke I splurged and got the "Ona Breeze" fan, and I can recommend that in addition to Ona itself.
 

Tonygreen

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And a no...

I know people who use it and you cant smell the plants or herb, all you smell is ona .It gives me a headache personally and I don't like it near my plants or buds .
I would place the stuff just out side the grow room to mask smells If I had to use it .
If its near your exhaust don't worry about it .


This is all mostly I could find. Hopefully others have more to add?
 

watts

ohms
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vaportek optimum 4000 will work on the inside and outside of your grow safely. Really only need it outside the grow though.
 

SecondAttempt

Active member
I run a vaportek 4000 and a CAN filter, well several filters actually(different rooms)... I used to run generic or "store brand" filters and they were not nearly as effective as the CANs, I'm sure other premium brands are good too, I'm not a CAN salesman. Single best upgrade I've made to my odor control.

Used ONA a few times early on, never really liked it.

Vaportek machine is expensive, if I were doing it over I would just pull the guts from a vaportek cartridge and hang it up where a fan would hit it from time to time. That's actually what I do with the cartridges when they start to become ineffective.
 
Im going with bigger filter system this time too but not convinced the scrubbers will knock out any chance of a scent trailing underneath me to lower levels.

Thoughts? Advice? Good or bad idea? Like I said did a search but not too much discussion on this set up.
I see many people here on this forum with the same problem, I think you guys get this because you did a wrong calculation when you got a filter/fan. We need to use negative pressure in the room so the odor wont escape. This is how to do it:

Capacity of the fan (exhaust):
Count all the wattage of all bulbs and add up 30%.

Capacity of the filter:
Use the same formula as I mentioned before OR count all the wattage of the bulbs divide this by 2 and add up 20%.

The difference between these two is that for the first formula you'll need a bigger/heavier filter. If you use a bigger filter you're be able to use it for a longer period compared to a smaller one. I myself always use the first formula and change the filter after 3 rounds.

When do I need to replace the filter?
When you buy a new filter weight it. After a while the filter will get heavier, if the filter gets heavier by 30% it's time to change it. So if your filter weights like 100kilo and after 2 rounds it weights 130kilo you should replace it.

Passive intake:
We need to know the diameter of the tube connection of the exhaust fan. You should multiply this diameter by 2 - 2.5. So if the diameter of your fan is 400mm we should create an intake of 800/1000mm.

Active intake
Active intake should be 30% of the exhaust fan.

As long you keep the negative pressure in your grow room the odor will never escape. People have been using these methods for ages without getting caught and believe me they always work. Good luck.
 

Tonygreen

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Great info. Sadly my situation is not going to be perfect thus the need for an extra back up as well as increased security needs.
 

stoney917

i Am SoFaKiNg WeTod DiD
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Ona outside the room filter inside,.... put a cup of ona newhere u think smell escaping. ... keep up with changing refilling cups.. they dontlast long... 2dayz
 

120Octane

Member
I had issues with the charcoal filters working that most use on a 6 or 8 inch fan for a tent.


After alot of digging around and reading I found this out about charcoal filters. Humidity is a factor to how well they function. Before I went C02 never smelled anything had 2 8 inch filters in a 10X10 tent. I went C02 and after a few months they began to fail. Not really bad but you walked down the hallway to the room you got the smell, not enough to knock you down but it was there.

What I did was throw out the 8 inch filter that everyone said replace. The cost was like 285$. I spent 400$ and got a can filter that holds 80 lbs of charcoal. The charcoal is replaceable and filter is made to change it out when needed. I put the can yes no BS its almost size of a 45 gallon trash can on the outside of the tent and push air from the tent into the filter.

When you buy the bigger units you need to size the CFM AND also know that if you draw air through the filter the CFM ratind changes VS if you push air through it. You can go either way but be aware there is a differance. Since went to the can 2 years ago never had a whif of any plant I have grown. I have had some strains when you opened the bag it made the room reek but the room where plant are at never has an issue of smell. You still get a odor when you open the tent that is unavoidable but as far as when it is closed never have had an issue since going to the can. I have fan in the tent, push air through ducting to the can which sits in the room as the tent and dumps the air into the room once scrubbed.

I have the can 75 and you but the flange you need. The number means how much charcoal it holds. I wish someone would of said hey for another 100$ you can have the filter that will work for you reguardless how you grow.
http://www.hydrofarm.com/catalog.php?selbrand=63

http://www.hydrofarm.com/catalog.php?selbrand=63
 

120Octane

Member
I just looked they are cheaper now than they were when I bought mine. You can buy a 75 lb can for $277.60. That does NOT include the flange you need for what ever size CFM fan you are using. Thats the same price as most lil filters that everyone has. If have a grow shop near you maybe bale to get one there for tad more since it has to be shipped at a higher rate because of the weight. I think 80lbs is the max UPS will ship if need to buy online.

You can go with ONA but your going buy it constantly, just buy a can and be done, less hassle and less pain.
 

the gnome

Active member
Veteran
i used a carbon scrubber with ona outside the room, nonsealed grow.
works like a charm.
I also have a vaprotek4000 and that thing is great., i use the neutral or linen cartridges.
since I'm sealed now i don't run the scrubber any more, but still use ona or the vapor shark refills.
harvest and the trim is where i have my biggest prob with odor so i used a combo of the vaportek and ona gel buckets @the trim site.
 

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