5 times higher filtration efficiency than that of masks
Humans have been using mask for over 200 years but seldom doubt its effect.
According to research, low-density mask has low filtration efficiency and same for
high density mask, as air could travel freely from the space between your face and
the mask. With micro space imagination, BROAD invented the Nasal Lung-Pro, it has a
filtration efficiency at least 5 times higher than that of a mask and is more breathable
and comfortable, even cheaper. As almost the tiniest product, it will bring changes to
the most people in the world. The only flaw is that people might not get used to the
look of the Nasal Lung-Pro on their face. However, we believe humans will eventually
be aware of the inefficiency of mask.