Large Filter for the Montana Covid Mask

prusaprinters

<p>At the beginning of the pandemic I printed out a number Montana Masks. Now after months of use, I decided there is not enough airflow through the mask. Instead of throwing away the masks, I designed a new Montana Mask Filter.</p> <h3>Print instructions</h3><p>Print the parts in filament of your choice. The adapter requires supports, use blocking to prevent the small tabs at the top from being supported. See the 46mm Adapter (Meshed).3mf file.</p> <p>Press fit the adapter to your Montana mask. Use the grill to cut disposable mask filter material to right size. Place the filter then the grill into the cap and secure the cap to the adapter.</p> <p>The original Montana mask STL file is included.</p>