MINI FUME EXTRACTOR
Candy tin device helps keep your air clean
and your lungs healthy. By Marc de Vinck
A fume extractor uses an activated carbon filter
and fan to remove the smoke, and noxious fumes,
created from soldering. The average price of a small
hobby version is about $100, but this one will run
you more like $10. This mini fume extractor won’t be
as effective as a larger one, but it’s definitely better
than nothing, and extremely portable. Remember,
always work in a well-ventilated area.
Photography by Marc de Vinck
1. Build the circuit.
I decided a quick mock-up might be a good idea,
and I’m glad I did. At first, I thought that running the
case fan off just one 9-volt battery would provide
adequate power. In the end I decided that 12 volts
“sucked” better, and in this case that’s a good thing.
The final circuit (at right) uses a simple switch,
two 9-volt batteries, a 40mm case fan, and a 7812
voltage regulator. The 7812 takes voltage from the