And another issue would be protocol- how long do you wear one N95 mask, how do you remove it, dispose of it. Since Ebola can survive for hours under the right conditions you could have live virus on your N95, take it off with your bare hands and sit down to a meal and you're infected. Any of this protection is worthless without following protocol.

I've worn a N95 for 4 hours during inter agency training. I may still have the protocols / paperwork for proper PPE donning & doffing. Once i locate it i'll try and post.