Lowering humidity in 2x2 tent without dehumidifier, damprids?

Brock_Fawkin_Samson

Active Member
Not sure about damp rids.

Exhaust works well. If you have lower temps you can increase them a bit to drop RH.

Find your current RH line and note its Y intersect at your current temperature. Then drag horizontally until you intersect with the next RH line.

RHvsT.jpeg

If you had 30% RH @ 70F (black dots)...
then if you raised ambient to 85F the RH would drop to 20%.

If you had 60% RH @ 78F (red dots)...
then if you raised ambient to 84F the RH would drop to 50%

This holds true as long as the amount of water in the air is constant. Good luck
 

Merlin1147

Well-Known Member
Where are you in the growth cycle? LED or HID lights? Look up a vapor pressure deficit chart for you growth stage. If your under LED without IR diodes you probably can raise the temps a bit to get in the sweet zone on the VPD chart. Depending on the growth stage. If your late in flowering that probably won’t work.
 
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