Active filter (with 40mm fan) for Mask L 3D Printer File Image 1

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Active filter (with 40mm fan) for Mask L 3D Printer File Image 7

Active filter (with 40mm fan) for Mask L 3D Printer File Image 8

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Active filter (with 40mm fan) for Mask L 3D Printer File Thumbnail 1

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Active filter (with 40mm fan) for Mask L

_MSA_

April 25, 2020

Description Comments Tags

Description

A proof of concept of active filter block for Mask L https://www.thingiverse.com/thing:4273471 with mount block for 40 mm fan
Item has 3 options of fan mount block
mask_m2s-afilter-p1b11.stl - 11mm mount space for 40x10 fan
mask_m2s-afilter-p1b21.stl - 12mm mount space for 40x10 NF-A4x10 notcua fan (it is doen't fit 11mm)
mask_m2s-afilter-p1b21.stl - 21mm mount space for 40x20 fan

This is an experiment - the main idea to have income airflow into a mask for easy breathing (but I think we need to add to mask extra outgoing valve).
As a simple option mount two active blocks - first as input, second as output
Use a single or double (one in one out) filter pads

Update 30/04/2020
Did tests with dual fan setup it was much better one directed to in another to out. Also did adapter with voltage regulator step-up module MT3608 board to USB to power it via powerbank
Use fans with higher static pressure
Update 03/05/2020
The new version of ring mask_m2s-afilter-p2b.stl use instead of mask_m2s-afilter-p2.stl if want less sharp conners

How to change filter pads
https://youtu.be/z45eO2t3_bo

How to assembly
https://youtu.be/E5hk1T0ZMYI

License:

Creative Commons - Attribution