Remember folks!
The CDC recommends N95 mask for Ebola that stops things 0.3 microns in size.
Ebola Is 0.08 Microns (range of size is from 0.05 to 0.3 microns).
Ebola doesn’t survive floating in the air. It has to be inside droplets of water, so most masks will be sufficient. The important point is it has to seal around the face and protect the eyes.