The coronavirus disease 2019 (COVID-19) pandemic has led to a great demand on the personal protection products such as reusable masks. As a key raw material for masks

meltblown fabrics play an important role in rejection of aerosols. However

the electrostatic dominated aerosol rejection mechanism of meltblown fabrics prevents the mask from maintaining the desired protective effect after the static charge degradation. Herein

novel reusable masks with high aerosols rejection efficiency were fabricated by the introduction of spider-web bionic nanofiber membrane (nano cobweb-biomimetic membrane). The reuse stability of meltblown and nanofiber membrane mask was separately evaluated by infiltrating water

75% alcohol solution

and exposing under ultraviolet (UV) light. After the water immersion test

the filtration efficiency of meltblown mask was decreased to about 79%

while the nanofiber membrane was maintained at 99%. The same phenomenon could be observed after the 75% alcohol treatment

a high filtration efficiency of 99% was maintained in nanofiber membrane

but obvious negative effect was observed in meltblown mask

which decreased to about 50%. In addition

after long-term expose under UV light

no filtration efficiency decrease was observed in nanofiber membrane

which provide a suitable way to disinfect the potential carried virus. This work successfully achieved the daily disinfection and reuse of masks

which effectively alleviate the shortage of masks during this special period.