I have made a couple of solder fume extractors using Altoids tins. You can find instructions for these on the Internet. However, I always found that I had to get the extractor very close to the soldering, and this was not always easy to do.
The other day I was clearing out my workbench, and I found an old hair dryer saved from another project. It struck me that with this, I could make something that was much easier to position close to the source of the solder fumes.
It turned out to be very simple. I think the video explains it well. Here are the parts, materials and tools I used.