The only thing I found to work was a carbon filter find a small one and set it up inside the box up the top with the fan I did this in a fridge and it just sounds like a normal fridge I have had ppl standing next to it and they didnt look at it twice
I found a small one from Filtaroo its 100mm x 150mm only 15 cm of carbon area but it works well for my small setup with the smallest inline fan I could get (290 m3/h) (airflow) amd added a Fan speed controlor to slow the fan down to about 100m3/h to make it queiter.
I used an odor sock and it worked fine untill it rained and the humidity went above 75 then it stopped working setting off panic lol
I have spent alot of time researching this for stealth if you want I will help with setting up or sourcing parts just ask
I am so happy with my fridge and how is sounds and looks lol
I am in the middle of sourcing parts for a bigger one not sure if a 2 door fridge or office cupboard
I am house bound and its nice to have some thing to do so I make plans lol
Hey @Iva I understand.
That is a big reason why I worry about getting this stuff correct the first time.
I’m not able to just run out to the store, or easily return items, and never mind not having the money to toss around. lol
You need a minimum 190 Cfm extraction fan, you loose 1/3rd Cfm by hooking up to a carbon filter. and then loose more each bend of the ducting. A vivosun has a built in speed controller, as you’ll want to fine tune the negative pressure and humidity ect.
That’s Aprox 12 cubic feet. You don’t want to get a fan that will only do 100 max with no resistance. You want something that you can account for bends in ducting, filters, ect. Each thing looses Cfm, cubic feet per minute. You also don’t want to run your fan at max cause it’ll wear out much faster plus electricity will be more and noise will be more. A larger fan turned down is always quieter than a smaller fan turned all the way up.
scissors and wire cutters for cutting ducting
If you use a 4 inch inline and small carbon filter you can hang it up the top with little loss of space
Mine is in a fridge so I put it where the compressor was in the bottom and I run the ducting down the back but you need to leave room behind it if that doesn’t look at of place
Its winter here atm so I run air from the seedling area thru the grow area for extra heat.
P.S. You could put the filter on the outside and suck out air that filters through from the inside out, instead of inside the tent and filtering outside in. If it won’t fit.
Suck air out into your fan, and out your fan into the inside of the filter, filtering outwards. Make sense? But only certain filters can go inside out, most are rated outside in. So again look at reviews and descriptions.
I don’t think the fan will be able to mount on the inside of my grow box…
Not unless I lower the light a few more inches, which I really don’t want to do…
I think I’m going to try to hang the carbon filter on it’s side, along the top of the grow box, and run the ducting from the filter, through 1 of the premade exhaust holes, and have the fan on the outside…
But, what would be a good way to secure the filter?
I was thinking of using 2 more of those eye hook things, like the LED is hanging from, and looping some rope through them, and putting that around each end of the filter.
Does this make sense?
Or, would something like this possible work for me?