The Grow Awards 2026 🏆 
Use my fan as exhaust or intake?
Fruitgroweranswered grow question 5y ago
Exhaust always necessary, intake for a small amount of plants is enough just opening the door daily...
THCblowingDragonanswered grow question 5y ago
If door open than Intake. Becouse the breeze will move plants and they will become stronger. Thicker main steam
likes
Complain
Similar Grow Questions
Solved
buddhi_coop
Co2, tempAre these okay levels? Been kind of hard to manage the heat in my tent. Weather here is super hot right now.Other. Mold
Other. General questions
Setup. Ventilation
5y ago
1
Solved
CannaJkee
Сколько ватт на 1 кв.м LEDСкажите сколько ватт света LED нужно на 1кв. метр.
Сколько минимум, сколько норма, и сколько будет света прям за глаза прям. Светильники на 500w 100х100см LED.
ТЕНТ 300х300, и сколько нужно вентиляции выдува в метрах кубических. планирую TD SilentSetup. Lighting
Setup. Ventilation
5y ago
1
Solved
Harukisan
Can I close the door of my closet?My tent is located in a closet kind of room (5x2 meters) and I was wondering if could close the door during the night because the fan is a bit noisy. Will it fill the room with exhaust air/humidity and damage everything inside (the plant, also the clothes that are in the room)?Week 5
Setup. Ventilation
5y ago
2
4
Solved
Foggedaboudit
Do air extractors fit with any grow tent or do they have specific sizes?Setup. Ventilation
3y ago
1
1
Solved
BossHogg6
Hydroponic humidity control.What's the best way to control humidity when dealing with hydroponics? Ghost cabinet stealth grow box by Unique Hydroponics its a 15x9x36 cab...two plants in the bloom stage. I'm at 70% humidity, which I know is high, but no issues with the plant. I have the journal postedOther. General questions
Setup. Strain - Autoflowering
Setup. Ventilation
6y ago
3
3
Solved
kizdog
Controlling environment in closet with no intake fan?I'm growing inside my closet, and I'm having trouble controlling temp/humidity. I have an AC Infinity exhaust fan and a cheap amazon fan + wet towel blowing air in from the outside. Are there any cost-effective ways for me to control this? It can get a little warm/dry sometimes4y ago
2
2
Solved
Italy_Grower
White dots on the pistilsHi everyone, what are these white dots on the pistils, they come out with every cultivation, can anyone help me?Buds. Not fattening
Setup. Ventilation
Techniques. SoG
2y ago
2
2
Solved
GreenCosmos
(MarsHydro) Anyone have experience with this combo?I'm thinking about upgrading my ultra cheap duct fan and carbon filter to this beauty.
It has a thermostat controller and is under 250€.
It seems to good to be true for this price.
Is anyone using it and give me a review?Setup. Ventilation
2y ago
8
6
Solved
StoneyBird420
Setup/air qualitySo the air surrounding my grow tent isnt ideal. My mom smokes cigarettes inside at night.. so my question.. will it effect my girl, should i have my exhaust and carbon filter scrubbing the air inside the tent and recirculating it back in? Or leave it setup directing air out?Week 2
Setup. Ventilation
4y ago
2
2
Solved
SmylinPupil
4” filter upgrade help! SmellHey guys, I’m wondering what is a good recommended 4” filter for my tent? I got one that came with a fan, ducting and the filter off eBay but the filter is the shits. I had it vented in the room but the smell was brutal. It’s vented out the window under my deck, reeks there now.Setup. Ventilation
6y ago
1
4
Solved
dauntless
Humidity at night. Should I add a heater or...Lights on day, my temps are perfect, and my humidity is 55-59% at 74-80 degrees F. Night, temps drop to the 60s and humidity goes up to 70-78%. Bought tiny dehumidifier to add, and I could also small heater. Is 70-78% gonna mess me up? Indoor/Outdoor And Winter is coming. ;)Week 11
Setup. Ventilation
5y ago
2
Solved
Kdog20
Question about ventilationI have a 200cm tall tent with a carbon filter connected to an extracter fan/ duct leaving the top corner of my tent.
I have no intake air fan connected, although the walls of the tent are bending inward- should I add an intake fan in the bottom of the tent?Week 1
Setup. Ventilation
5y ago
3
3
Solved
buddhi_coop
Set Up TentHow should I set up my carbon filter, exhaust fan & air ducts? I’m in limited space right now but want to make sure I get good air circulation still. I set it up the wrong way the last time I had it up but it was already up so I just left it. Also, my fans. Where should they go ?Setup. Lighting
Setup. Ventilation
Setup. Other
4y ago
1
1
Solved
TerpTurtle
climate controlAny tips on controlling humidity swings? im trying to balance out the intake & outtake, ive tried to turn off the system just have the dehumidifier run.. but am working harder than I feel like I should. just looking for some tips on keeping a consistent environment.Week 11
Setup. Ventilation
5y ago
3
2
Solved
iMpulsive_Grow
New grower and high tent temp. please helpSo I have a 2by2 tent and temperature is staying around 80 degrees. I have a total of 3 fans in there and lowered the wattage on my 1000w hydro LED lights. What else can I do to keep it at optimal temperature? Also has a Hydro Co2 booster fan making it 4.
any suggestions please?Setup. Lighting
Setup. Ventilation
6y ago
2
1
Solved
Basementgrow05
Help! Drying ?!?So I have my plants about too finish but not all so I have too find a space too dry them when I chop them down and what would be better trimmed hang dry for a day or 2 and then push them in jars but boveda packs or is 71 61 too high F & RHWeek 10
Setup. Ventilation
5y ago
1
7
