etrëma reusable masks are governed by these international standards and have been tested many times in laboratories, always after 100 machine washes, to ensure results and to compare them with disposable masks …
This is why we can affirm, scientific results in support, that etrëma washable masks provide protection not only in conformity with disposable surgical masks, but better!
Their filtration and breathability are equivalent but their fit and design allow a better sealing and long-term wear (8hrs / day). Add to all this that they are reusable at least 100 times and are totally recyclable (zero waste) at the end of their useful life …