By continuing to use the website or clicking Accept you consent to our cookies and personal data policy. For details please see Privacy Policy
Accept
Sealed grow air scrub
Dankbudz84started grow question 4 years ago
After adding a dehumidifier, evaporative cooler and c02 bag I decided to go ahead and do a sealed grow to better control the environment. Conditions look great. I’d like to know if I can loop my exhaust to recirculate the air to scrub it when things get stank? Video on the diary
like
GMSgrowsanswered grow question 4 years ago
A supply of fresh air is vital when your not running your c02. Plants put off oxygen and breathe c02. So in a sealed environment when c02 is not running and you recirculate the air it would be like putting a bag over your head. This time it would be oxygen building inside the tent instead of the co2 they need to breathe.,Cheers
Dankbudz84answered grow question 4 years ago
I am adding C02, I have the ability to maintain a perfect vpd at all times, I also walk in the tent at least once every 2 days maybe they are getting their fresh air there. I don’t see how this would be bad, I have humidifier, dehumidifier and a/c.
like
Complain
Organomananswered grow question 4 years ago
No, it wont work.
Without fresh air exchange your plants will die.
Plants need both oxygen and carbon dioxide to survive.
You can not grow healthy plants in a system whereby there is no replenishment with new air.
like
Complain
Similar Grow Questions
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
6 months ago
2
2
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
9 months ago
1
2
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
8 days ago
2
2
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
2 months ago
9
8
Solved
RekNBlazed
Humidity too low?Is 38%-40% humidity to low for this size seedling? Am i going to have to invest in a humidifier?
Setup. Ventilation
4 years ago
4
4
Solved
Snooziecheesecake
Ventilation questionIs it possible for me to take down the walls of my tent and leave the frame with the lights on it to let the plants get more space? I don’t have a way to ventilate the entire closet from an external source, just been ventilating the tent w/ an exhaust fan and carbon filterWeek 5
Setup. Ventilation
4 years ago
1
Solved
Dillsnills
Dehumidifier in tent ok to blow on plants?I'm running a small dehumidifier in my tent I've never had to put one in the tent before but I have more plants which means more humidity. Is it ok for the air coming out of the dehumidifier to blow on the plants or not? I didn't know if this will affect the plants. Advice apprec
Setup. Strain - Autoflowering
Setup. Ventilation
4 years ago
2
2
Solved
KCduzit
How can I get my humidity down? (Basement grow tent)Plants are currently sitting at Rh 55% on my controller on day one of flower. I have a small $40 probreeze (Amazon) dehumidifier In the tent and am using a 4 inch intake (full strength) and 6 inch exhaust fan (1/4 strength). Day Temps around 25 Celsius in basement4 years ago
2
3
Solved
Newbiegrower420
Cardboard box method for dehumidifierHi 👋 can anyone tell me what success they’ve had using the cardboard box method for housing their dehumidifier? My unit is heating up inside the tent so much as it works harder during flower to keep humidity levels lower. Before I make the switch I wanted some opinions?Setup. Ventilation
4 years ago
1
2
Solved
VeggieTales
Help cooling grow tent 4x4Please experienced growers I need advice. I’m runnning a 4x4 grow tent and the temp is constantly 84-87 degrees. How do I lower temp. I have a 190cfm exhaust and 100cfm intake, 2 fans, and a humidifier. Im growing exhausted and frustrated trying to get the temp down.😅please helpSetup. Ventilation
Setup. Other
4 years ago
3
5
Solved
creamer
RH question! Huge veg phase plantsAir humidity increases during night time (up to 90%). I have placed carbon filter below the plants.
Question actually is do I need to be too worried if I can get the RH level better within next couple days? It’s first week of 12/12 switch now. :)4 years ago
3
2
Solved
Dillsnills
Prob a dumb question and could prob answer it myself but if you run a warm mist humidifier that will raise the temperature where as cool mist would not as much right? Advice input opinions greatly appreciated. Day 77f 60rh. 70night 60-65rh.
Setup. Sensors
Setup. Ventilation
4 years ago
1
1
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
4 years ago
2
Solved
DaSofaSurfer
exhaust or ventilation?during "night time" I can only have one fan. I'm undecided on how the one fan can better serve me. exhaust or ventilation? which is more important during dark. I do have a dehumidifier btw. no ac but atm temps have been cooperating. cheers guys, thanx in advanceWeek 11
Setup. Ventilation
4 years ago
5
5
Solved
FlavorzChaser
How to lower HumidityHi can anyone help with humidity I'm using a small dehumidifier in my tent also a large dehumidifier in the room but the large dehumidifier generates so much heat it can send the room to over 28 degrees I need to get humidity down to 50% at least any advice or suggestions please?Week 6
Setup. Ventilation
4 years ago
1
1
Solved
martiniii
Do any body have any experience in making your own carbon filter?Thinking about making one from two steel mesh "ovals" with +-2cm in between. Use some filtration cloth so the carbon don't go through the mesh. And will fill the space between the meshes with activated carbon used for this purpose. Do you think its going to work? ThanksSetup. Ventilation
4 years ago
2
2
Solved
Newbiegrower420
Best Humidifier for 3x3x2 grow tent and best way to set up?I’m about to buy a dehumidifier. Finding one with programable humidity levels makes them too big 4 my tent & the small ones can’t be programmed to turn off when humidity is too low. Can I get a cheap one with no controls and manage humidity with my Humidistat alone? Will it work?Setup. Ventilation
4 years ago
1
3
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
4 years ago
2
4