Soldering fume extractor

Yet another soldering fume extractor design. Made for 12v 60x60x15mm fan, required a 3,7V to 12V step-up circuit (boards are available at aliexpress http://ali.pub/59hija), an on/off switch (available at aliexpress http://ali.pub/59hirn) and 4 m3 screws to hold the fan also you'll need an activated coal filter which can be placed inside the enclosure.