Fan needed?

[bakeaway]

ok,,,so the lighting is great,,humidity good,,,now should I have a small fan circulating air?
This is my first time growing on a windowsill ( had a greenhouse long time ago),,,

Thanks

[cb977]

Most orchids need definitive air movement. It also helps with prevention of moisture-related problems

[camille1585]

Agreed, but on a windowsill I don't see the need for a fan, unless your humidity is really really high. In the Netherlands I usually have 60-70%, but no fan. I do avoid crowding my orchids too much so that air circulates between them.

[RosieC]

I find that on my windowsills in rooms I use regularly (my kitchen, living room and bedroom) I have never found a need for a fan.

However my dining room is not used that much and when I had a couple of plants in there I started noticing problems with them not drying well and generally a feeling that they were not apreciating stagnant air. Because I didn't own a fan, I actually resorted to standing in the doorway flapping it to move the air and I would do the same every morning and evening.

I now have more plants in there (9 orchids filling that windowledge now) and because of that I go in and out a lot more frequently and to be honest had forgotten about the problems over the summer, until Hedge asked about needing fans with uPVC windows on a recent thread.

Bascially I tend to find that just the air disturbance from people moving and doors opening and closing does fine for me. It likely does depend on the humidity though.

[Connie Star]

This winter I've set up a small growing space for a portion of my collection in a bathroom. I find I can keep it @ 50-60% humidity, but I have to keep the door closed. I'm wondering if there is enough air movement? Bakeaway, I'm sorry if I'm hijacking your thread.