Respinano FFP1 with valve respiratory mask
Nanofibers with large surface area to volume ratio have shown great potential in
filtration applications, including air filtration, dust capture as well as absorbing
and detoxifying biological and chemical contaminants. Polymer nanofibers with polar
functional groups have strong affinity to particulate matter (PM) pollutants and
therefore show high removal efficiency at low pressure drop and high optical transparency.
Nanofibers are promising for use in face masks to achieve both high PM capture efficiency
and sufficient air permeability. As it can be seen in the figure below, the addition
of nanofiber layer increases the efficiency of particle trapping and at the same
time allows the air to pass through, which in respiratory masks it is known as breathability.
According to BS EN 149:2001 standard for filtering half masks (also called filtering
face pieces). FNM Co. Ltd., can produce different classes of respiratory face masks
(FFP1,FFP2,FFP3). FFP1 respiratory mask with efficiency of 80% (0.3 micron particles)
and pressure drop of 55 pascal is suitable for public environment and without any
toxic gases. The performances of FNM’s nanofiber-based respiratory face masks can
be seen in the fiqure below.