And inhalation isn't the only way to get infected -- any mucous membrane (including the eyes) is a possible infection route. The only real protection is a full hazmat suit with a full face shield. And you need to know how to take it off without infecting yourself.

The best way to protect yourself from the illness is to stay away from other infected people, not wear some home made protective gear that you're probably not going to replace often enough or handle and dispose of properly after you take it off.