Respirator exhalation filter
The filter is designed for respirators with exhalation valve to prevent its wearer to spread drop infection.
In the contest Everyday Life Necessities
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updated March 28, 2020
Description
PDFThe filter is designed for respirators with exhalation valve to prevent its wearer to spread drop infection. Between two printed parts there is space for 2-4 layers of cotton or similar filtering material. The filter holder is tightly inserted into cylindrical valve hole (D 30 mm) inside of the respirator.
Print instructions
Use finner layer setting for the threaded part.
Model origin
The author hasn't provided the model origin yet.
