New face masks to protect against flu

The new england medical journal showcases a new face mask with the capability of filtering really small particles.The facemask, called N95 repirator has apparently been shown to be effective at preventing the spread of viruses due to their high filteration capacity.This is good news,since this is a non-pharmaceutical intervention workers (especially healthcare workers can protect themselves)\

Reference
http://content.nejm.org/cgi/content/full/NEJMp0908437