The washability and reusability of nanofibre filter membranes is one of their key advantages.

Cleanability: The fluorinated poly(vinylidene fluoride)-hexafluoropropylene copolymer co-doped with silica composite fibre filter media prepared by electrostatic spinning and polyfluoroalkane vapour-phase deposition has super-hydrophobic and oleophobic properties, which can be cleaned and regenerated for reuse by simple spray washing and natural air drying.

Reusability: Some nanofibre filter membranes have good reusability. For example, the above mentioned filter materials have been subjected to more than 10 cycles of ‘contamination-cleaning’ with no significant loss of filtration performance or light transmission.

Maintenance of filtration efficiency: In some studies, nanofibre membranes have maintained excellent filtration performance even after long-term storage. For example, in one study, nanofibre membranes maintained their filtration performance after 365 days of storage.

Nanofibre Filter Membranes

Biodegradability: Some nanofibre membranes are also biodegradable, which means that they can be buried in the soil for biodegradation after use without causing environmental pollution.

Performance: By embedding silver nanoparticles into nanofibres, composite nanofibre membranes are prepared with not only low resistance filtration, but also performance and a high quality factor, indicating excellent filtration performance.

Water contact angle: the water contact angle of the nanofibre membrane is an important parameter to measure its wetting performance, and a higher water contact angle indicates that the membrane has a better anti-pollution ability.

Air permeability: while maintaining high filtration efficiency, nanofibre membranes also have good air permeability, which is particularly important for air filtration and other applications.