Nano fi;ter are made vis LCD Array process, its feactures are: 
Uniform porous within the material (U%<5%)

Nano scale can be adjusted by customer need (size>20nm)

High open ratio (>25%)

Low flow resistance as open ratio is high

7 masks process that lead to low cost

High level of technology and high entrance barrier

Now we had passed the development phase and ready for engineering phase! T

The application of Nano filter include:

Act as a final filter in HEPA and can lower power consumption dramatically and lower the operation cost

Act as a final filter in air purification, then it can become a Nano purification

Act as a face mask or nose mask, it can be N100 grade or even high

Act as a window filter, then you can open the window while the haze smog is heavy