FUME EXTRACTOR FILTER PORTABLE

The standard size for activated carbon filters seems to be 13x13cm. If everything woks as intended you can add the module with plenty of hot glue to the fan. Considering the price this was an acceptable tradeoff for me. Be aware that this reduced the lifetime of the fan. To increase the airflow tuned the voltage until it was running at its rated power of ≈2W, which was at about 15V. I used a lab power supply to test this assembly and noticed that the fan is drawing way less power than specified. Turn the potentiometer until the output voltage is about 12V. Īttach a power supply to the input and a multimeter set V to the output. Carefully proceed to solder wires to the outermost pins, connect the red wire to + and the black to. Once the connector starts 'flowing' you can remove the heat.

For high mechanical strength you have to heat the board and the connector thoroughly and apply some additional flux. If you don't have such aboard at hand and are a little bit insane (like me) you can also solder a micro usb port upside-down to one of the ground (= minus) terminals. Next solder the micro USB breakout board to the input. After tinning the wires, solder them to the output of the step up module. Leave them slightly longer than required to allow for corrections later on. Use a round file to make a small indent to fit the turn-thingy of the trimmer. I picked the MT3608 because it can handle the power easily, fits well into the overall build and is incredible cheap. This is such a common task that there are many different ICs and modules available. To run a 12V fan from a 5V USB supply the voltage needs to be 'boosted'. You can also attach a 12V power supply instead and skip this step.

FUME EXTRACTOR FILTER PORTABLE

It makes the device suitable for the most common power supplies and allows for easy portable use with an USB battery pack. A micro USB port adds a lot of convenience in my opinion.

Fume extractor filter