Response to Coronavirus disease (Covid-19)
with all sort of masks
(https://images.app.goo.gl/WqiTSaCNGwn9nKFi8)
The
coronavirus disease has expanded in the world, and the entire population is
rushing to buy masks. But what many people don't know is that general cotton
and activated carbon masks can’t filter germs at all. Be sure to choose a mask
with a medical equipment license number to be a medical mask with epidemic
prevention effect.
The
function of the mask is mainly used to prevent droplets between people. Check
that there is no specific antivirus or specific antibacterial in the
specifications. Especially cotton masks, gauze masks, and activated carbon
masks are not medical equipment. Any filtering data has no basis and has not
been checked by the state.
The
doctor explained that common cotton printed masks or gauze masks on the market
can only filter larger particles, or which can be used for warmth or anti-dirty
purposes, and can be reused after cleaning.
The
components of activated carbon masks can adsorb organic gases and malodorous
molecules and toxic dust, but don’t have the function of sterilizing or
filtering bacteria.They are suitable for riding motorcycles, painting, spraying
pesticides, and should be replaced if you need to breathe hard.
To
combat the Covid-19, medical masks, surgical masks, and medical N95 masks, must
be used. Regardless of manufacturing or importing, you must first apply to the drug
Administration. The quality and filtering effects can be verified before
obtaining medical materials license.
Due
to the special material of medical masks and surgical masks, they can block
most of the particles above 5 microns, and have been reviewed to ensure that
the bacterial filtration efficiency is higher than 95%. Surgical masks also
have more prevention to respond to droplets and body fluids that may be
encountered during surgery.
Medical
masks and surgical masks have at least 3 layers of design, the outermost layer
is a waterproof layer to prevent spraying of droplets; the middle is a static
layer with a mesh structure that can absorb tiny particles and bacteria; the
third layer is also waterproof materials to avoid saliva splashing.
As
for the N95 mask, because the filter material is specially designed and
thickened, it can block more than 95% of sub-micron particles. It is suitable
for first-line medical personnel. Due to the high respiratory impedance, the
general public is not suitable for long-term wearing. There are two types, of
which only medical N95 is helpful for epidemic prevention, industrial N95 is
not a medical material.
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