All the comments so far make perfect sense to me.

I much prefer lead/tin multicore solder to the dreadful new-fangled lead-free variety, but I’m installing a simple centrifugal extractor fan (bathroom type) under my workbench. The exhaust side is vented outside to a roof vent, and the intake side will connected to freely moveable piece of flexible duct on the top side of the workbench, so I can move it near the piece I’m soldering. It’s an el cheapo version of those £350 extractor kits you see around the place. I’ll feel a bit more comfortable letting the kids solder when I’ve got this up and running.

- Andrew