README.md

# Characterizing Filter media

Masks chatacterized: \
[3M N95](./3M_N95/README.md) \
[Gerson N95](./Gerson_N95/readme.md) \
[Kimberly-Clark 47117](./KC_47117/readme.md)


## Measurement methods
- filter material width: micrometer, squeezed until width is no longer changing 
- fiber thickness: SEM, data measurement