exhaust fan air

hello guys,iv got two questions :

1. can i use the air that comes out from my exhaust fan to put it again in my grow tent ? Basically to put the the duct that comes from the exhaust in the vent for the inline fan.And have another vent at the top open.

2.Does the carbom filter pull humidity aswell ? If yes , the air that comes through the carbon filter has the same humidity like the air in the room or is it drier?

Unless you are supplementing co2 you do not want to recirculate your air and if you are supplementing I dont see the point of running your exhaust to your intake.. just run it sealed

1- Yes, a closed loop system but it is temperature dependant. Peeps use this exhaust return in colder countries.

2- Carbon filters are inactivated by high humidities - you need to refer to the manufacturers basic running guidelines or you can google threads that cite max running humidities and go off that.

Yes to all but it requires technical know how and common sense plus trial and error to dial in. Ask if you realky need to first imo

Juiceifer said:

Unless you are supplementing co2 you do not want to recirculate your air and if you are supplementing I dont see the point of running your exhaust to your intake.. just run it sealed

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If this guy is asking this then co2 is still too complex for him yet. I wouldnt even touch co2 as a hobbyist

Kingrow1 said:

If this guy is asking this then co2 is still too complex for him yet. I wouldnt even touch co2 as a hobbyist

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I think he's saying that the only way you can do a recirculating system is to supliment the Co2, which is true. For a hobbyist without a Co2 setup you cannot recirculate the air as the plants take in the Co2 eventually depleting the ppm to levels where the plant will cease to grow.

Basically OP the answer to 1 is no and to 2 is yes, the air is dryer once its been pulled through carbon, even if only marginally. . you'll have to find another way.

Fandangle said:

I think he's saying that the only way you can do a recirculating system is to supliments the Co2, which is true. For a hobbyist you cannot recirculate the air as the plants take in the Co2 eventually depleting the ppm to levels where the plant will cease to grow.

Basically OP the answer to 1 is no and to 2 is yes, you'll have to find another way.

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Depends if there are any vents or gaps as low air co2 will equalize rapidly with any external air.

I should have stated not a true closed sealed air tight room which seems past a hobby in some ways.

If he meant that then my bad and yes co2 would have to be fed in and measured to keep the atnosphere exact which seems costly.

Some labs use closed system co2 to see exactly how much co2 a plant uses per second min hour day etc