I am looking for some input on the placement of the fan in my make-shift orchidarium. It's attached the the underside of a 3-tiered shelf ($2 spice rack from Sprawl Mart). The fan is really small, even for a CPU fan, but I was kid of worried about the direct air current on any plants. I'm not sure if this is adequate. My leaves don't move at all, but everyone seems happy. Fan runs 24/7.