N95 masks use clever physics and mechanical tricks to filter particles.
The fibers in N95 masks are like a sticky spider web, attracting particles.
Multiple layers of fibers increase the chances of particles getting stuck.
N95 masks can filter both large and small particles.
Medium-sized particles are the hardest to filter.
How do N95 masks filter particles?
—N95 masks filter particles by getting them to touch the mask fibers, which are like a sticky spider web.
Can N95 masks filter both large and small particles?
—Yes, N95 masks can filter both large and small particles effectively.
What particles are the hardest to filter with N95 masks?
—Medium-sized particles are the hardest to filter with N95 masks.
How should I wear an N95 mask properly?
—You should ensure that the N95 mask is fully sealed on your face to prevent air and particles from bypassing the filter.
Can N95 masks be reused?
—N95 masks are intended to be disposable, but during the COVID-19 crisis, some decontamination methods can be used to extend their use.
00:11Prior to March 2020, many people were unaware of N95 masks.
00:28N95 masks are not simply a fine strainer; they use clever physics and mechanical tricks to filter particles.
02:23Particles of all sizes can be attracted to the fibers in N95 masks using an electric field.
03:56N95 masks can filter both large and small particles effectively, but medium-sized particles are the hardest to filter.
04:08The proper wearing of an N95 mask is crucial for its effectiveness.
04:23Decontamination methods should be chosen carefully to protect the electrostatic properties of N95 masks.
05:04N95decon is a volunteer team developing research-based decontamination methods for N95 masks.
05:53Brilliant.org offers math and science resources for learning and engaging with questions and problems.
