Humidty at night


#1

How does everyone control the humidity spike when the lights are off? I already have my light hood vented and another dedicated exhaust fan for temp control. Am I going to have to add another exhaust fan for humidty? Hoping to find a way not using a dehumidifier because I don’t have enough space in my cabinet.


#2

As someone told me, once:


#3

Try these dehumidifier packs for cars or rooms with things like driers in them, should help you have that bit of control you need.


#4

I bought this tiny humidifier & it works beautifully! I had looked at various packs & moisture absorption pads, but they hold so little moisture & get crap reviews.

This humidifier is about as big as a thick book.
hOme Small Dehumidifier for 1200 cu ft (150 sq ft) Bathroom or Closet - 16 oz Capacity Mini Quiet Safe Compact Thermoelectric Energy Efficient Dehumidifier Air Purifier - Auto Shut Off


#5

What size area do you use it in? How low can it bring your humidty and how long does it take for it to get to your set point?


#6

I use it in my 2x4x5 tent. That tent has an exhaust fan, a carbon filter, a clip fan, and one open passive intake panel.

W/in 3 hours of plugging it in the first time, my humidity dropped by 5%; by the next day the humidity had dropped by 10%. It collects about a cup or 2 of water every other day, depending on contents of tent & how much I’m watering.

I run it 24/7.

If you purchase it, just make sure to cover the little light on the front of the unit.

My humidity has not gone above 37% in a couple months, now. It seems to stay at 33% unless I water.


#7

I just harvested my last plant. It’s hanging in my tent. Before harvest, the rh was 33% with the dehumidifier on. 12 hrs after harvest, with the dehumidifier off, the tent rH is 44% The tent has been in total darkness since Monday afternoon.