2RedEyes, I run mine (circulating & exhaust) 24/7. Learned a hard lesson with powdery mildew, never again. I even went so far as building my own sulfur burner, (never used). Yes I was cycling fans on/off, no I wasn't monitoring my RH. Most fans don't draw that much current, even so it's the price paid for being able to end up with a good mold free bud. Good luck :watchplant:
(When established out of germination)