Vote Now 🏆 for the Grow Awards 2025!
By continuing to use the website or clicking Accept you consent to our cookies and personal data policy and confirm that you are at least 18 year old. For details please see Privacy Policy and Terms
Accept
Fresh air intake
HappyThoughts414started grow question 4 years ago
Hello, does anyone have experience with a fresh air intake in a grow tent and how did workout for you? Thanks in advance!
Open
Setup. Ventilation
likes
Answer
GMSgrowsanswered grow question 4 years ago
With a fresh air intake all your c02 levels are met, so no need to add c02. Cheers
likes
Complain
Similar Grow Questions
Solved
HerrTom
Brauche ich unbedingt einen (Schwenk-) Lüfter in meiner Growbox?Habt ihr schon mal ohne (Schwenk-) Ventilator in der Growbox angebaut? Wenn ja, welche Erfahrung habt ihr dabei gemacht? Ich möchte nur ungern einen Ventilator einsetzen, weil das vermutlich die Lautstärke der Box deutlich erhöht. Schon mal vielen Dank für eure Erfahrungen.Setup. Ventilation
5 months ago
9
8
Solved
RecordSet
2x2 Circulating FanWhat is the best circulating fan for a 2x2 tent available on the european market?
I bought a Secret Jardin MO20 oscillating fan, and I highly regret it because I have read several reviews mentioning that it can catch fire. Is there any other good alternative for circulating air?Setup. Ventilation
4 months ago
2
2
Solved
RGGROW
Maintaining VPDI've got my photoperiod doing well in a 2x2 tent. I'm trying to regulate my VPD with what I have on hand. Currently I'm running my exhaust fan for 8 minutes every hour to get an average VPD around 1, but I'm concerned about the swings. Am I micromanaging?Setup. Ventilation
Setup. Other
2 months ago
1
Solved
hweixd
How crucial is an exhaust fan and a carbon filter?I cant find anything in my country as a kit, but would buying them piece by piece work?
Example something like in the photo connected to an air duct and then to a carbon filter?
Or if the exhaust fan is not crucial? how can i get rid of the smell in a cheaper way?Setup. Ventilation
a year ago
1
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
9 months ago
2
2
Solved
alhambra
Exhausting air outside when using Air Conditioning, yes or no?Hi there. This is my first indoor grow in soil. I have a room with A/C. The grow tent is in that room. My question is, should I be exhausting the air from the tent outside or into the room. If i exahust the air outside, isn't it counter productive to the A/C?Setup. Ventilation
2 years ago
3
3
Solved
Ertomid
reduce humidityWhat techniques exist to decrease humidity naturally without something made special for?Week 5
Setup. Ventilation
2 years ago
5
3
Solved
MontyGrowz
Why is my RH so high?Inline Fan: S&P TD-350/125 Silent (in use) AC Infinity CLOUDLINE T6 (not in use, but testet)
Filter: Can Lite Filter 300m³/h
Transformator: SCNR5 (in use on setting 4/5)
Tent: 2x4x6 ft, i get 70-80%+ RH inside
My Room is at 45-50% RH with a temp of 60-70°F. Old Air gets outside.2 years ago
2
2
Solved
alhambra
Temperature Probe. Where to place it?I use a Vivosun exhaust and control hub. It comes with the temperature and humidity probe. I am curious, based on experienced growers here, where do I place this probe? On the floor or do I let it hang mid-way in the the plant itself?Setup. Ventilation
2 years ago
4
Solved
masdefs33
Tried mini dehumid. still issues with portable ac (added @ 9pm 6/2) see pic for graphAvg RH was 45%,had spikes @ 80% RH in dark, added portable ac to my tent. It raised avg. RH not lowered. Intake @ 40% RH that runs on a humidity cont. set @45%Now Day RH ~52%, Night RH ~60%.Ac starts RH spikes to 70% in dark. WTF am I doing wrong. Id hate to lose it to mold.Other. General questions
Setup. Ventilation
2 years ago
5
Solved
Lordcrow
I am facing a temperature problem again....My tent reaches 84.2F, which is too hot in my opinion. But my humidity is perfect. On the other hand, if I activate the ventilation, the temperature of the tent reaches 76F, which is perfect, but the humidity level drops dramatically to 35%.
1- Keep Humidity
or
2-Keep TempWeek 1
Setup. Ventilation
2 years ago
4
5
Solved
Hou_Stone
it's getting too hot. I added 2 fans inside. Do you think I can enable them 100% of the time/all day? Or is it bad for my plants?Week 11
Setup. Ventilation
2 years ago
2
1
Solved
MiyaguiOkPolilla
Demasiado calorEs posible que la lámpara CMH se calienta demasiado debido a las horas que lleva de uso? 🔥🌱
Anoche llegué a casa y me encontré con este panorama, algo con lo que no puedo lidiar ya que tengo 2 extractores y 2 ventiladores funcionando todo el tiempo ⏲️Setup. Ventilation
2 years ago
1
2
Solved
VitaMan
Peltier dehumidifier @300ml per day adequate for 3x3x6 tent? Alternatively, a conventional dehumidifier outside the tent?Peltier thermoelectric dehumidifiers extract 300ml of water per day. Weak compared to compresser units, small and use less energy. Is it enough?
Would a conventional dehumidifier set outside of the tent near the intake be effective, or does it need to be inside the tent to work2 years ago
2
2
Solved
Gazeye
Risk of bud rot with these conditions?My tent keeps bouncing between 55-65% throughout the day during mid-late flower stage. Staying between 24-26 C. I have two fans moving air in the tent and the plants are we defoliated. An in-line fan is pulling air out. How much at risk am I for bud rot? Thanks!Buds. Other
Setup. Ventilation
2 years ago
2
3
Solved
NonameGrowDude
grow tent / lung room temps???Dialling in my tent and want to compare to others to see if more ventilation = lower temps.
What temperature and humidity difference do you have in your tent and "lung room"?
Do you exhaust your air from the tent to the outside of your lung room?Setup. Ventilation
a year ago
1