replaceable filter mask, dip the face surface in 1" of 170°F water for 3 seconds and form to fit your face

thingiverse

Mask Design Features Various Filter Materials, Cuts to Exact Dimensions The mask is crafted to accommodate filter materials that are precisely cut to 4-1/4" x 2-1/2", allowing for a snug fit and optimal performance. The mask's design enables it to hold up to 1/16" thick media, ensuring that the filter can effectively capture particles and contaminants. To ensure a customized fit, simply dip the face surface into 1" of warm water at 170°F (77°C) for a few seconds. This will allow the mask to conform perfectly to your facial structure. The top of the filter opening features a set of slotted holders specifically designed for attaching a face shield, providing added protection and comfort. For easy attachment and removal, hooks are strategically placed on the sides of the mask, allowing you to securely fasten or release the filter as needed. The rounded surface at the face surface is not only comfortable against your skin but also serves as a convenient holder for a split surgical tube, ensuring a tight seal and preventing any gaps. For optimal environmental durability, we recommend using PLA materials in the production of this mask. However, please note that use of this product is entirely at your own risk.