Chances are that you got to know about N95 due to the current pandemic.
But did you realize what is special about N95 masks? Why is it called N95?
N95 masks are not a filter that stops for example flies entering a house, but it is like a cobweb where tiny particles stick to it to block them.
1. Take advantage of stickiness of matter, 2. Use many layers of fibers to catch straight moving large particles and random bouncing small particles, 3. Electric field that attracts all particles (10x sticky with the electric field)
It blocks all very small particles and large particles. It blocks 95% of medium size sneaky particles. That’s how it got its name!
Washing N95 can destroy the magnetic field and reduce the effectiveness of them.
