Thin Comfortable Plan B Covid 19 protective Respirator

thingiverse

This design is for a reusable protection mask that I'm sharing due to the shortage of disposable ones. While its performance might be similar to an N95 mask, I want to emphasize that it's not a certified design and will likely never be. When deciding to use this item, you're on your own. If possible, consider using a certified mask instead. This reusable protection mask is designed to be printed with .4-.6mm nozzles and a layer height of .2-.3mm. It consists of five printed parts: Mask, Filter Base, Filter Cap, Filter Grid, and Spacer Ring. To print the mask, use the slicing program's "spiral vase" option with eight base layers to ensure proper mounting of the filter base and cap. This method allows for quick, smooth printing with minimal seal breaches when used. Additionally, it produces lightweight flexibility and comfort. The Filter Base, Filter Cap, Filter Grid, and Spacer Ring can be printed using methods that optimize small parts on each type of 3D printer. Assembly is straightforward: place filter materials inside the filter base and secure them with the Filter Grid. Load the Filter Base through the circle slot with threads pointing outward, then attach the Spacer Ring over the threads and screw on the Filter Cap. Be cautious not to over-tighten the cap, as this can cause excessive wear. To swap out a filter, place your thumb inside the mask's filter base and gently unscrew the Filter Cap. Two 2mm holes should be made in pairs on each edge of the mask, around 40mm apart, halfway between the bridge of the nose and the chin. Attach rubber bands to these holes for ear bands that hold the mask securely. A subtle application of heat from a blow dryer can also create a more custom fit around the nose area. The mask is ready to use at this point but can be improved with self-adhesive foam weather stripping for windows, which is inexpensive and widely available. When choosing a filter material, breathability is key. Some options include make-up remover pads, vacuum filters from shop vacs, or cotton sheeting. To swap out a filter, follow the same steps as before. It's essential to note that standardized PPE for viral pathogens are almost always disposable, so this design must be disassembled and thoroughly cleaned and sterilized after every use. Reminders: * When printing the mask, ensure you're using the "spiral vase" option. * Print with eight base layers to include the slot for mounting the filter. * For users: 1. Stay indoors only when necessary. 2. Change filter material after each use. 3. Disassemble and thoroughly clean/sterilize after every use. Please remember that this is not a certified design, so you're on your own when deciding to use it.