Replacement filter for vented masks

thingiverse

This filter swaps out the vent on a mask with a container that can hold a cotton makeup remover pad or other filtering material, which helps cut down on unfiltered exhaled air. Does it stop Covid-19? Unfortunately, I don't have a way to test that, but if you do, let me know if it works better than standard non-filtering vents.\r\n\r\nIf you leave your mask in the car, avoid printing with PLA, as it will melt.\r\n\r\nWhile there's still room for improvement, it appears to be working fairly well.