Filtration: Filtration is necessary in many engineering fields. Nanofibrous media have low basis weight, high permeability and small pore size that make them appropriate for a wide range of filtration applications. Since the channels and structural elements of a filter must be matched to the scale of the particles that are to be captured in the filter, one way of developing high efficient and effective filter media is by using nanofibers in the filter structure. Due to the very high surface area to volume ratio and resulting high surface cohesion, tiny particles of the order of <0.3 mm can be easily trapped in the nanofibers filters and hence the filtration efficiency can be improved.
Acoustics:

Sound absorption and sound transmission are the main factors affecting acoustic properties and they depend on the interaction of sound wave with the fibers forming the nonwoven fabrics. While nonwoven fabrics are known as good sound absorbers at high frequency, they are less effective at low and middle frequencies, because of their low density. In general, any acoustical treatment requires high performance in both absorption and transmission losses. High absorption can be achieved by using suitable absorbers, while high transmission loss requires heavy barriers. An absorber needs to be porous and light, but a barrier needs to be impermeable and massive. How to best create a combination of these two contradictory properties in a multiple-layer is considered as a big challenge for all acoustical engineers. In recent years innovative solutions have been derived from electrospun nanofibers The effectiveness of a fiber-based sound absorption material involves several parameters such as porosity, tortuosity, fiber diameter, surface density, and thickness.

PPE:

Nanofiber membranes are used in protective textiles due to their ability to afford high breathability or water vapor transmission rates (WVTR) while maintaining required barrier properties.

Respiratory Mask:

The size of most dust particles are between 3-1 micrometers which easily pass through ordinary masks. These nanofiber masks block out suspended particles of 0.3 micrometers or smaller. These nanofiber masks block out Viruses, Bacteria, Dust, Pollen, Spore, and Industrial Pollutant.