USB powered carbon filter extraction fan for weed / tobacco smoke

grabcad

To be placed near a window such that the weed smoke gets sucked into the carbon filter, and blown out the window. Made using cooling FAN 70*15mm, however I have added to the model to include the little wires that exit from the motor. Consists of two fans, two mesh peices, two carbon filters, and 4 nuts and bolts. You can see a real life version in the images, it runs off of a usb cable. I can rip a fat bong hit, and the fan will clear it away nicely. These sorts of fans are available readily and cheaply, the most expensive part is the carbon filter.A 3D printable case is available here:Fan shroud for 70mm fan based cooling / carbon filter extraction systemsHappy smoking