nnp N95-electrocharged filtration principle based face mask design using common materials Figure 10
![nnp N95-electrocharged filtration principle based face mask design using common materials Figure 10](/sites/default/files/styles/embed_lg_1x/public/2024-03/nnp_fmask.png?itok=ePD-8jex)
Figure 10: (a) A commercial fabric mask with folds and which expands when worn on the face to reveal the folds as shown (b) here by intentionally expanding with the hand.
Date:
05 March 2024
Copyright OIST (Okinawa Institute of Science and Technology Graduate University, 沖縄科学技術大学院大学). Creative Commons Attribution 4.0 International License (CC BY 4.0).