Face Mask Using 58mm Diameter Filter

thingiverse

<b>Updates:</b> 2020-05-03: jpsaila fixes floating strap mount issue 2020-04-25: Flex-friendly version uploaded, available on Thingiverse 2020-04-18: Minor updates, added narrow versions and step files 2020-04-06: New cap and cover design for thicker pads 2020-04-05: New grill and strap mount design released 2020-03-25: Updated 2-point strap mount in four sizes uploaded 2020-03-25: Four-point strap mount version uploaded, available in four sizes 2020-03-21: Improved strap mount design with larger version 2020-03-19: Redesigned strap mount based on Euter's feedback, sealed mounting and strap holes <b>Overview:</b> This face mask was originally designed for circular cotton pads as filters. Cotton pads are approximately 58mm in diameter and easily available in most stores' cosmetic sections. Pads can be made from HEPA vacuum cleaner bags or N95 masks, and other filtration media where applicable. Masks come in five sizes. <b>Printing:</b> 1) Choose a mask size (may require experimentation to find the best fit) 2) If using only cotton pads, print the cotton filter 3) If using thicker pads or stacking filters, print the filter cap and scaleable cover, scaling the cover along the z-axis only. The cover should be roughly 7mm minus the total thickness of your pads and interface covers. 4) If using the filter cap and scaleable cover with cotton pads, scale the cover to 6.2mm on the z-axis only <b>Usage:</b> Sand rough edges that will come into contact with skin. When mounting the filter to the mask, rotate counter-clockwise until you hear a click. Release the filter by rotating clockwise. Replace cotton filters as often as possible and wash the mask with warm water and soap. To improve fit, seal, and comfort, try using Nexcare waterproof tape around the rim of the mask or P-type weather stripping applied inside the rim. Neoprene foam tape can also work well. https://www.homedepot.ca/product/m-d-building-products-3-8-inch-x-3-8-inch-x-17-ft-small-premium-rubber-gap-seal-p-profile-white/1001121260 https://www.nexcare.com/3M/en_US/nexcare/products/catalog/~/Nexcare-Absolute-Waterproof-Tape/?N=4326+3294529207+3294631805&rt=rud https://www.amazon.ca/gp/product/B01G382DX4/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1 For 80mm N95/N99 pads, see: https://www.thingiverse.com/thing:4235068 <b>Disclaimer:</b> Use at your own risk