3M 6300 half face mask generic filter mods

thingiverse

** 2021 Feb 3rd New version https://www.thingiverse.com/thing:4748934 3M 6300 half face mask generic filter mods. These are for 3M half/full face masks that accept 3M mount for air filters, along with a snap on filter for outgoing air. I am using 3M Filtrete A/D/H true HEPA filtration, for bacterial and virus. The purple box for air filter stations. The outside of box is 10” x 5” with a filter width of 4”. The filters are made with glue gun type of glue. This can easily be peeled off the filters with care. Leaving a long strip 4” wide. Then cut to size and tape to custom filter mounts. Use a very sticky tape and that is solid (no air passing), I used electrical tape. You can view more and more at my personal website https://gallaghersart.com/page/airtight_adapters_for_medical_masks_and_face_respirators Stay Safe! `mike Print settings. .4mm nozzle, .5mm line and perimeters NO SUPPORT Bridge YES – set bridge flow to 60-75%, this will make the layer have spaces between filament lines. You can then easily cut out or leave in place as air can pass. Wall line count 3x, infill 20% or more, top and bottom layers 3x. *3madapter_22.stl (print 2x air intake) Uses @ 40g of filament 1x air outtake uses @37g of filament PLEASE NOTE ABOUT 3D PRINTS: Even though 3D prints are sold, they have weakness along filament layers, can absorb water and moisture (viruses live in water). If they become cracked or broken DO NOT USE.