{"page":"\n\n
\n
\n
\n
\n
\n\nVideo\n
\n

\nThe Astounding Physics of N95 Masks\n

\n
\n
\nGet Free Access for 10 Days!\n
\n
\n
\n
\n
\n
×
\n\n\n
\n\nPublisher:\n\nMinutePhysics\n\n\n
\n
\nThis video was written in collaboration with Aatish Bhatia - To learn more about using & decontaminating N95 masks Thanks to Manu Prakash for useful discussion and feedback (Manu is involved with the N95 decontamination project) The...\nThis video was written in collaboration with Aatish Bhatia - To learn more about using & decontaminating N95 masks Thanks to Manu Prakash for useful discussion and feedback (Manu is involved with the N95 decontamination project) The physics & engineering of N95 mask design is pretty incredible. REFERENCES 10X efficiency of electrically charged fibers \"The electrostatic charge of N95 masks is a major contributor to their filtration efficiency, improving it at least 10-fold over uncharged fabric\" (Tsai et al., Journal of Electrostatics 2002; Peter Tsai, personal communication). Prakash Lab COVID-19 Response Group Working Draft Document on N95 masks “Electrostatic charge contributes as much as 95% of the filtration efficiency� Molina, A., Vyas, P., Khlystov, N., Kumar, S., Kothari, A., Deriso, D., ... & Prakash, M. (2020). Project 1000 x 1000: Centrifugal melt spinning for distributed manufacturing of N95 filtering facepiece respirators. arXiv preprint arXiv:2004.13494. Tsai, P. P., Schreuder-Gibson, H., & Gibson, P. (2002). Different electrostatic methods for making electret filters. Journal of electrostatics, 54(3-4), 333-341. History of Electrets Jefimenko, O. D., & Walker, D. K. (1980). Electrets. The Physics Teacher, 18(9), 651-659. Physics of Air Filtration Hinds, W. C. (1999). Aerosol technology: properties, behavior, and measurement of airborne particles. John Wiley & Sons. Scientific consortium for data-driven study of N95 N95 & virus particle sizes Bałazy, A., Toivola, M., Adhikari, A., Sivasubramani, S. K., Reponen, T., & Grinshpun, S. A. (2006). Do N95 respirators provide 95% protection level against airborne viruses, and how adequate are surgical masks?. American journal of infection control, 34(2), 51-57. Harnish, D. A., Heimbuch, B. K., Husband, M., Lumley, A. E., Kinney, K., Shaffer, R. E., & Wander, J. D. (2013). Challenge of N95 filtering facepiece respirators with viable H1N1 influenza aerosols. Infection Control & Hospital Epidemiology, 34(5), 494-499. Liao, L., Xiao, W., Zhao, M., Yu, X., Wang, H., Wang, Q., ... & Cui, Y. (2020). \"Can N95 respirators be reused after disinfection? How many times?. ACS nano. Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute! Created by Henry Reich\n
\n
\n\n
\n
\n
\n
\n

Resource Details

\n
\n
\n
\n
Curator Rating
\n
\n
\n
\n
\n
\n
Educator Rating
Not yet Rated
\n
\n
\n
\n
\n
Media Length
\n
5:25
\n
\n
\n
\n
\n
Grade
12th - Higher Ed
\n
\n
\n
\n
\n
Subjects
Science
7 more...
\n
\n
\n
\n
\n
Media Type
Instructional Videos
\n
\n
\n
\n
\n
Source:
\n
\nMinutePhysics\n\n
\n
\n
\n
\n
\n
Date
\n
2020
\n
\n
\n
\n
\n\n
Language
English
\n
\n
\n
\n
\n
Audiences
For Teacher Use
2 more...
\n
\n
\n
\n
\n
Usage Permissions
Fine Print: Educational Use
\n
\n
\n
\n
\n
\n

Additional Materials

\n
\n\nSign in or Join Now
\" data-title=\"Get Full Access\" data-container=\"body\" rel=\"popover\" tabindex=\"0\" href=\"/subscription/new\">Video Transcript\n
\n
\n\nSign in or Join Now
\" data-title=\"Get Full Access\" data-container=\"body\" rel=\"popover\" tabindex=\"0\" href=\"/subscription/new\">Video Preview\n
\n
\n
\n

Concepts

\n
\n
space, straight lines, size, fibers, masks, engineering, particles
\n
\n\n\n
\n
\n
\n
\n

Additional Tags

\n
\n
attracts, n95 mask, gaps, touches, attract particles, travel, sizes, science, touch, electric field, dust, mask, 95 masks, small, openings, strong, filter, layers, experiments, filtering, good, strainer, hardest, fiber, sneak, airborne particle, zigzagging, physics, stuck, point
\n
\n\n\n
\n
\n
\n
\n

Classroom Considerations

\n
Video is ad-free
\n
\n
\n

Educator Ratings

\n
\n
\n
\n
\n
\n\nShow resource details\n
\n
\n\" data-title=\"Get Full Access\" data-container=\"body\" rel=\"popover\" tabindex=\"0\" aria-label=\"Play video: The Astounding Physics of N95 Masks\" href=\"/subscription/new\">\"The\n\n
\n
\n
\n\n\n\n"}