Face-or-Gas mask adapter for easy-breath tribord against corona
thingiverse
A 12V fan attached to an USB-powerbank wil push air through a replacable filter so that clean air can be transported by a 12/15mm tube to a Decathelon dive mask. If you do NOT want to use a dive mask but instead wear a normal face mask then the Y-join with a 3-5mm tube can bring you fresh+cleaned air at your nose. This prototype worked well but the fan+filter part is commercially also available for welders. I asume that the commercial product will work much better. Thanks to student Thijs Wassink from the Netherlands for helping me with the designs.
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