Active filter (with 40mm fan) for Mask L

thingiverse

A Proof of Concept Active Filter Block for Mask L is a game-changer. Check it out here: https://www.thingiverse.com/thing:4273471 with a Mount Block for 40 mm Fan. This Item Comes in Three Exciting Options for the Fan Mount Block: mask_m2s-afilter-p1b11.stl - A Perfect Fit for 11mm Space, Ideal for 40x10 Fans mask_m2s-afilter-p1b21.stl - A Great Option for 12mm Space, Specifically Designed for 40x10 NF-A4x10 Notcua Fans (Note: This One Won't Fit in an 11mm Space) mask_m2s-afilter-p1b31.stl - The Ultimate Choice for 21mm Space, Perfectly Suited for 40x20 Fans This Is Just a Experiment, But the Idea is Brilliant - Bringing Income Airflow into a Mask for Easy Breathing. We May Need to Add an Extra Outgoing Valve, though. As a Simple Option, You Can Mount Two Active Blocks - One for Input and One for Output. Use Single or Double Filter Pads to Suit Your Needs. Update 30/04/2020: Dual Fan Setup is the Way to Go! Directed Fans Work Much Better than Undirected Ones. Plus, We've Added an Adapter with a Voltage Regulator Step-Up Module MT3608 Board to USB to Power It via a Powerbank. Use Fans with Higher Static Pressure for Optimal Performance. Update 03/05/2020: The New Version of the Ring Mask_m2s-afilter-p2b.stl is Here, and it Uses Instead of mask_m2s-afilter-p2.stl if You Want Less Sharp Corners. How to Change Filter Pads? Check Out This Video: https://youtu.be/z45eO2t3_bo How to Assemble the Active Filter Block? Watch this Video: https://youtu.be/E5hk1T0ZMYI