You don't need to raise the person's potential for this to work, though it could make it more effective. https://en.wikipedia.org/wiki/Electrostatic_precipitato

You don't need to raise the person's potential for this to work, though it could make it more effective. https://en.wikipedia.org/wiki/Electrostatic_precipitator https://en.wikipedia.org/wiki/Electrostatic_precipitator Places like hospitals filter the air internally to reduce infection.