Dr - Safe by Deroi is 6 Layer antimicrobial Mask which is washable reusable yet very fashionable. It has got advance multilayer filtration technology, which includes 5 layers of non - woven (Melt Blown and SMS fabric) and one layer of Designer printer antimicrobial treated fabric. RSR INTERNATIONAL is parent company of De-Roi , which is CE (Compliance) Certified , ISO 9001:2015 ; GMP & ISO 13485:2016 Certified company.