Mask with filter
Face mask with replaceable filter This is a rework of: https://www.3dwasp.com/mascherina-stampata-3d-da-scansione-3d/ and https://cults3d.com/fr/mod%C3%A8le-3d/outil/masque-de-protection-covid-19-ffp2 Use nano copper filament for better protection or at least copper filament for the filter part. Possibility to add filters of 40 mm diameter. First version, will try to update. Feel free to remix this.
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