70%? That's a lot of humidity. I suppose in an ideal setting. If you achieve 30% - 45% you are doing fine. Later in flower drop it to 20% - 35% to avoid bud rot / mold issues. Also note that humidity in the 70% range will shorten the life of any carbon scrubber.
bigsby Reviewed by bigsby on . How to raise humidity? Hi, I need to raise my growrooms humidity, it's usually between 30-40%... Any recommendations on raising humidity? I tried using jar of water, not much results... Was thinking of wet sponge, would this work? Any tips much appreciated. Thanks:thumbsup: Rating: 5