4in Fog Chiller Induced Fan Duct

Created this in Tinkercad to draw air/fog out of a fog chiller without disrupting the fog too much
Slides into a piece of 4in PVC, and uses a 50mm fan from Amazon that runs on a USB battery pack.
Supports will be needed, and I'm not an expert on supports, but you'll need some long long-nose pliers, or some hemostats to pull the supports out of the duct innards.