covaflu kn95 face mask pack of 10 fold flat masks comfortable fit covaflu covaflu custom-fit comfort and smooth airflow have made it a staple for personal use at home, outdoors and work. covaflu was created in 2007 by clinova, a british consumer healthcare company. covaflu masks are made out of soft flexible material with comfortable elastic earloops to secure against the users face, nose and mouth. covaflu is made from a specialised material for high filter efficiency and easy breathing. covaflu is; lightweight and easy to carry, has a comfortable soft inner layer, elastic loops that easily hook behind the ears, and are individually packaged for hygiene and convenience.