Enhanced 3M 7502 Out Flow Adapter
Description
# Pledge $ a cup of coffee. # ##**If you like it, use it or further create derivative works, please Pledge $ my [Patreon](https://www.patreon.com/tkworksd/ "Patreon") to show your support. **## 3M 7502 out flow adapter. Compatible with Alpha team's filter screw. Cautions: best use with surgery mask 3 layers fabric (self-crop), under the situation of pandemic COVID-19 corona virus. Protect yourself from being an invisible transmitter. Link of Alpha team's filter(s) https://www.thingiverse.com/alphaa/designs ##** If you like it, use it or further create derivative works, please Pledge $ my [Patreon](https://www.patreon.com/tkworksd/ "Patreon ") to show your support. **##
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