Help with low humidity in small grow box

I am growing in DWC in a grow box that is
4ft tall 16 inches across and 9inches deep.
I am having trouble getting my humidity above 16%.
I have tried a bowl of water, misting, a wet rag and there has been no change. :cry: I do not have room for a humidifier. Any advice on how to increase the RA?

Thank you in advance.

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I would get a humidifier big enough for the room your space is in and put it right outside the tents intake port or fan :v:


Thank you I will give that a try.


I don’t know if this will work with your setup, but it’s been working great at the intake of my tent. It’s like a miniature humidifier and is roughly a 6 inch cube

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