Easy Breath Face Mask anti Corona Filter Adapter (Updated Version with separated breath channels)

thingiverse

This is a 3D printable breath filter adapter designed for use on the Decathlon Easy Breath Snorkel Mask. The Filter.stl file represents the filter that replaces the original snorkel, while Netz.stl is a net wrapped tightly around the filter to keep the filter material in place. For the filter material, I experimented with two layers of paper towels or toilet paper, but any material can be used. Due to the large filter area, it's possible to utilize very dense filter materials. Unfortunately, I'm unaware of which material is best suited as a filter against the Corona Virus. Fortunately, the snorkel features separated in and out channels that prevent rebreathing one's own breath and keep the mask clear. Stay healthy.