Nashik based MyssTre has harnessed the quality of nanofibers to build the filter for masks and protective scarves. Their products have a nanofiber based cartridge which comes with a 99 % filtration efficiency filter that filters 2.5 micron particles/bacteria/virus and comes with an adjustable soft nose bridge and soft velcro. While most of its clients are local retail outlets and individual traders, the rest of MyssTre’s products are sold online through its website and ecommerce platforms like NetMeds and Amazon under the name of Nano-Air by MyssTre. The company has sold over 75,000 masks and scarves till now.