Questions about smell??

Im still getting ready for my first grow. I bounced alot of ideas around growing in my attic shed ect. But those ideas failed as i live in a very hot state close to the border. I have decided on a 3x1.5x6 closet to grow in my room. But im worried about smell penetrating into my room. Im planning on having exahuast and passive intakes but am wondering if this is going to be enough to keep smell from leaking out. As long as i have negative pressure inside then no smell should leak out correct? Plz tell me if im totally wrong? Also im planning on just using comp fans. One will be connected to a cool tube sucking air out from there and one will just be at the top suck air out from the room. Since my room is only 27 cubic ft small comp fans should be enough right also any other ideas would be appreciated.

anyone????

bro u should make a DIY carbon filter, it should REALLY help eliminate odors,


https://www.rollitup.org/indoor-growing/7074-easy-build-diy-carbon-filter.html


https://www.rollitup.org/do-yourself/101248-best-diy-ez-walmart-carbon.html


it shouldnt be too hard
cant say anything about the odor leakin out .

Hope this helps

Cheers

........................

it will stink. i have a 2x3x3 dual stealth cabs, i made a diy activated carbon filter as seen on R.I.U, bought a inline 4" 80cfm fan for $30 shipped already wired from htg and the smell is gone till you open the doors.

I LOVE THIS SITE

Your on the right track with your exhaust being higher cfm to your intake. .... but your outtake needs to have a odor eliminator ... ESPECIALLY during flowering to eliminate your smell. Cheap for now remedy get your normal socket Glade plug ins and keep them going 24 7 but you need to get that carbon filter on your exhaustline


Good luck
P

You can forget smell if you use a carbon filter. I've seen the ideas on making them but personally I'd recommend you buy one until you're more comfortable with the whole deal. That way you'll get a good result first time and know how everything should work. Activated carbon is really messy shit. The room I'm running mine in used to smell of cat piss / shit because we had a litter tray in there. When I kicked the kitties out and put the fan in, the room smelt 100% clean within hours. Even with 5 super strains under a 1kw lamp, it smells the same, entirely clean. It's all about air flow. Imagine the air your fan is sucking through the filter like clouds of colored smoke coming off the plants. You want all of it going through the filter. Almost all indoor grows are in an enclosed space of some sort, a room, closet or tent. One issue that you've already mentioned is heat. If you live somewhere hot, you'll probably need to get some cool air through the growspace (and fresh air always helps provide good CO2 levels). Try to seal up all of your growspace except for a duct that you'll use as a fresh air intake. Run it to something like a window or outside vent. Provided the fan is running 24/7, air will never flow back out. Because it gets harder for the fan to suck air down long lengths of duct, the pressure in your growspace will always be slightly negative, so any holes you've left will have air being sucked through them, not leaking out. The same tricks are used in laboratory design, but in reverse. If you're working with some sensitive samples and need really clean air, they blow air into the room quicker than it can get out. That way, whenever a door or something is opened, the clean air blows out blocking any dirty air from getting in. -like my reply? pls vote in my bulb poll (sig)-

running exhaust outside is a bad idea.. when ur filter starts to go bad you can have dank smell blowing into ur neighbors window

As is running an intake if you plan to switch the fans off overnight - as the tent will loose negative pressure and the smell will escape down the intake. I'd exhaust the tent into the room it's in and try to keep the doors and windows shut on it (apart from the intake duct). If the exhaust starts to smell, you should be able to tell when you open the door. For a 1m^2 x 2m tent size, you need to move about 250cfm and through an appropriately sized filter. If it's fresh and well packed, you won't smell anything in the room provided air is constantly being pulled over the plants and through the filter. Also check out the sound of your grow outside at night. If you're running an air intake / exhaust to the window, you can get some strange sounds down them. Putting my head out the same window, I couldn't hear them at all. Outside in the garden one night I figured "that's a strange boiler exhaust sound in the silence". It was the oscillating fan in the grow space echoing down the duct and I could only hear it further away. The centrifugal is just about audioble, but it sounds a lot like a quiet boiler exhaust or background noise. -like my reply, pls vote in my bulb poll (sig)-