The Grow Awards 2026 🏆 
Home made ventilation
Ganjafarmastarted grow question 4y ago
Will those blue lights will influence the plant at any stage ?thanks friends
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Growladyeastmidlandsanswered grow question 4y ago
Not do much need better lights and equipment happy growing
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Robertsanswered grow question 4y ago
Auto flowers no, but the set up won't likely work for a photoperiod.
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Similar Grow Questions
Solved
ChopperMcOG
So has anybody used these cordless mini dehumidifiers in their grow rooms? They’re small units that u charge over night every so often when the silica changes colour? My grow room is very small so an electric dehumidifier wouldn’t fit and I’m struggling to keep humidity downSetup. Ventilation
6y ago
1
2
Solved
Carlotta
Carbon FilterHello growers!
I'm thinking of removing carbon filter's outter fabric.
It affects my exhaust dramatically.
Does anyone knows if this is going to make it insufficient or ruin it?
(i think that this layer prevents humidity entering carbon particles)Setup. Ventilation
6y ago
3
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SneakyDog
Do I really need a exhaust fan ?If my 2x2 grow tent sits at 26c and 68% humidity without an exhaust fan do I actually need one ? The top of my tent, the vent is open and I’ve opened the observation window at bottom to allow air in. I’ve two fans, one at canopy level and one in top corner opposite the top vent ?Setup. Ventilation
4y ago
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Andreskaja
I'm still worried because the temperatures still haven't dropped this afternoon, it rose to 33 degrees and I tried, as you see in the videos, putting two fans or one big one and nothing.
Do you recommend turning on the light at night in the morning and how would it be to change tOther. Other
Plant. Other
Setup. Ventilation
3y ago
2
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Chaweeder
Fans and circulationHey growers, what is the the right amount of air movement. I had this girl in the line of my fan seems to be drooping, I dont believe it's over watering as she went 3 days without water. My next thing is maybe fan is to close? I had the fan on low and shuts off with the lightsSetup. Ventilation
6y ago
2
Solved
Erasmus
Air flow methodI removed the hood from the home AC to run cold air directly into the grow tent with a 4 inch duct at the bottom. I have an inline fan to push hot air out to balance out the air pressure at the top.
Is this a good idea or should I just have a fan inside with no in or out?Week 4
Setup. Ventilation
6y ago
5
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Lazuli
Growtent Humidity controlHow do you control humidity/temp when using a grow tent? is it enough to put a dehumidifier in the same room as the tent and close the tent and just blow the air outside with a fan and tubing? Do u need an intake fan too? Or does the "good air" gets sucked in enough without ? THXSetup. Ventilation
5y ago
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Newbiegrower420
Cooling whilst using humidifier outside a small grow tentI have a small 90x90x60cm grow tent with a VIPARSPECTRA 300W LED. Heat levels are crazy and running a small humidifier with ice blocks inside the tent along side extraction isn’t cutting it. Could I buy a bigger humidifier, keep it outside the tent duct it in to keep it cool?Setup. Ventilation
5y ago
4
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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
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Wyregrasser
Additional environment controlOptions for extra humidity and temperature control. Continuous drain not a problem. My Rh can stay in the 80% range for weeks. Attempting to control a 10x10. Would a small window Ac remove enough humidity (easiest)? Portable AC/Dehumidifier? Stand-alone dehumidifier? Suggestions?Setup. Ventilation
3y ago
1
1
Solved
MiraGrow
I am having some hot days with around 30 degrees inside of the tent.. its summer here and I dont really have a AC in the same room.. I have som fans but no AC.
This has also caused the humidity to be down to 35.. Should I worry about the hummidity? for the heat and hummidity?Week 1
Setup. Ventilation
6y ago
3
5
Solved
kardel
Guys, Need help about Droopy again, Is Mist from humidifier is a culprit ?My plant are happy but she look droopy "when I turn on humidifier"
1st pic is today, actually she not look like this before i turn on humidifier. 29-30'c and 65%RH
2nd pic is yesterday when I turn off my humidifier. 30-31'c and 45-50%RH
15days old. humidifier beside her pot.2y ago
1
3
Solved
BullWeedDog
Problemas temperatura en mi cultivo 5ta semana de floración.mi cultivo va muy bien pero estas ultimas semana ha empezado el invierno y las temperaturas en el interior han cambiado siendo estas la mas baja en 12° y la mas alta en 22°, suele mantenerse a unos 20° y la temperatura del sustrato suele estar a unos 16°C, puede ser un problema?4y ago
2
1
Solved
GrowGirl419
FansDo you guys leave all of your fans on all the time? I do but I'm wondering if I should. My best fan is getting hot hot hot however, if I turn it off I'm afraid it'll be too hot in my room or the air will get stag.
What do you do? Rotate fans? Turn em off for a bit each day or?Week 10
Setup. Ventilation
6y ago
3
2
Solved
Unkraut
Odor Problem in the last 2-3 weeksi have a problem with smell in the last 2-3 weeks...
i have a 0,80mx1,50m tent with a Rhino Pro carbon filter 765m³/h inside the tent and a carbon filter 800m³/h on the exhaust.
smell inside the grow room is quite subliminal but i can recognize it...
what would you suggest?Week 13
Setup. Ventilation
6y ago
3
3
Solved
MuMu_the_Grower
High humidity in the morningI’m having a very hard time coping with humidity (goes up to 85%), since I physically cannot get the airflow outside my house for various reasons. I open the window each morning, but could it lead to rottening in the late stages of flowering? Thanks for your replies ;)Week 9
Setup. Ventilation
3y ago
2
2