Spike protein over coronavirus is“strong negative charged”. The highly positive-charged fibers inside Curie’s filtration material attracts and arrests“strong negative charged” protein spikes on virus and bacteria.
Strong attraction force can tear off protein chain over envelope of coronavirus, and achieve COVID-19 killing effect.
Meltblown cloth relies on electrostatic to capture bacteria and viruses. Surface proteins of bacteria and viruses are negative-charged, and the electrostatic itself is negative.
The polarity of the two is the same and therefore it repels – inefficient in capturing microbials.
Electrostatic itself is unstable, and it is easy to dissipate and discharge due to high temperature and humidity. Few hours after the mask used, the filtration efficiency begins to decay.