Rrog
Well-Known Member
http://www.epa.gov/iaq/pubs/ozonegen.html Looks like something to be avoided if you can help it. Hospitals may have additional concerns regarding contamination that require much more aggressive steps.
Activated Carbon Furnace Filter
- Thread starter Huel Perkins
- Start date
st0wandgrow
Well-Known Member
Huh. Guess I will have to reconsider using it. Either that, or make sure it's off (and the room has been vented) before I go in.
Good lookin out Rrog!
Huel Perkins
Well-Known Member
I know that most people run ozone generators in conjunction with a timer. For example, it can run for 15 minutes every other hour of the day and simply be switched off any time you need to be in the grow room.
The key is to figure out what acceptable levels of ozone are and avoid them, this is the information i have yet to find...
The key is to figure out what acceptable levels of ozone are and avoid them, this is the information i have yet to find...
stumpjumper
Well-Known Member
Week 6 and my 6" x 4' filter is failing horribly lol. My shit is in the basement and when I wake up in the morning on the second floor I can smell it. I don't get visitors and my house is not close to others so really the mail lady is the only person that might catch a whiff..
stumpjumper
Well-Known Member
You ever heat your used carbon up to re-activate it?
Rrog
Well-Known Member
I have not, actually. That only partially works unless you can do it in O2 free environment (Pyrolysis) at something like 800F.
Otherwise in an oven with lots of O2, you could heat to pre-combustion, and may be driving off some elements like water or CO2 but not the main stink molecules that the carbon has attracted. MAYBE, because I don't know what temp would effectively drive off the odor molecules. Maybe that happens at a low temp.
If you raise the temp in high O2 oven, you'll burn the carbon to ash.
Otherwise in an oven with lots of O2, you could heat to pre-combustion, and may be driving off some elements like water or CO2 but not the main stink molecules that the carbon has attracted. MAYBE, because I don't know what temp would effectively drive off the odor molecules. Maybe that happens at a low temp.
If you raise the temp in high O2 oven, you'll burn the carbon to ash.
stumpjumper
Well-Known Member
Just wondered because Scentloc clothing has activated carbon in it and it supposedly re-activates it when you put it in the dryer..
Huel Perkins
Well-Known Member
Fresh replacement carbon is not that expensive.
stumpjumper
Well-Known Member
Where you buying it? It's like $8 a lb for aquariums...
NickNasty
Well-Known Member
I use to use a ozone generator when I was doing an attic grow, it worked great but people are right when they say it is harmful to plants, animals and people it will also eat away metal over time. It is best to use them on the exhaust if you are exhausting directly outside and even then it it should be exhausting in a place where it can dissipate fast. If you can smell the ozone then it is basically harming you, plants etc. They are a great way to sterilize an area when you are setting up a room though or when you got a room thats empty thats been giving you trouble with bugs/disease.
Rrog
Well-Known Member
You'd prefer to use carbon that was optimal size for vapor filtration. That would be 4x6 mesh size. Slightly larger than carbon for water filtration. It's what you'd find in commercial filters. Coconut carbon is what you want. Highest Iodine number.
Can be had for $2 a pound in 55 pound orders. Shipping is $1 a pound. that's 2 cu ft.
Can be had for $2 a pound in 55 pound orders. Shipping is $1 a pound. that's 2 cu ft.
stumpjumper
Well-Known Member
Seems cheaper to just buy a new filter
stumpjumper
Well-Known Member
Yeah I use bigger filters than that though.
Huel Perkins
Well-Known Member
Any hydro store should have it, or at least be able to order it for you. I forget exactly how much it took to refill my filter last time but I seem to remember it being roughly $1 per LB.