Reddit reviews Filter Tree Carbon Cut-to-fit air filter - ACCTF03 Fits to Air Conditioner, Hood Vent, Air Vent
We found 2 Reddit comments about Filter Tree Carbon Cut-to-fit air filter - ACCTF03 Fits to Air Conditioner, Hood Vent, Air Vent. Here are the top ones, ranked by their Reddit score.
Carbon Cut-to-fit charcoal air filterEliminate VOC (Volatile Organic Compound) and bad odorsMulti applications including furnace filter, range hood filter, ac filter and many others
I went with this and cut some off the roll to size. Double layered it over the intake vent for more light blocking. https://www.amazon.com/dp/B01GIZN0OI/ref=cm_sw_r_cp_apa_p-1gzbAVNB0F0
Taped the two layers together like so: http://imgur.com/YxFW3x2 then taped that over the tent intake.
Having a little trouble picturing what you mean in the first paragraph. Could you link the video? Generally, you can use your main 4" inline exhaust to cool the hood, and exhaust air from the tent. The problem is that they you have to have it running whenever the lights are on. That's doable, but not ideal. Especially if you ever deal with lower humidity. Because the tent will constantly be pulling in fresh air. . .versus, what I was trying to explain:
One small duct fan, just for the light. Ducted so the air cooling the light never touches the air inside of the tent. This fan will run whenever the light is on (hook it to the timer, along with the cord for the light). The inline is the only fan that touches the air your plants live in. It only kicks on when the thermostat tells it to.
So, in answer to paragraph #2: You don't hook the controller to the duct fan. Duct fan is separate. And runs whenever the light is on. Thermostat only hooks to the exhaust.
For a tent your size, in an AC room, passive intake should be fine. Open a flap or two on the bottom of the tent, cut a piece of cut-to-fit furnace filter sized to let you close the flap, but leaves a bit open at the bottom. If this is confusing, it'll won't be once you get the tent. And you can get filter material for cheap anywhere. And you don't have to worry about light-proofing for many weeks.
There are lots of other ways to handle the intake. In veg, it's as simple as opening the vent. The filters help block light in flower. And keep smaller insects/spores/etc out. If your tent has circular inlets instead of the flaps/screens, no problem, run bit of ducting and tape the filter inside the duct.
Finally. . .venting outside the room. If you use "my" setup, you will have two ducts, one constantly cooling the hood, one intermittently exhausting the tent. A simple Y-connector (and maybe a 4" to 6" ducting adapter, if you go with the 4" fan) will let you merge the two for a single duct out the window.
It's all really hard to visualize just in text. I can show some pics of my setup, but it's a bit confusing right now because it's winter in New England. So I keep my light fans, and my veg exhaust, blowing into the room. Free heat. But if you think you still aren't "getting it", let me know. I'll try and get a visual for you.
edit: Have a grow shop nearby? I don't recommend buying everything from them (although I buy my fans and ballasts from local shops. . .because if those break, I can't wait several days for a replacement). But if you were to go in and ask about the best way to rig a 2x4 w/ CoolTube, they should tell you. And not force any kind of sale. The people in my shops are super helpful, and taught my 80% of what I know about growing. I stop by for fun at this point.