What is the most effective type of disposable mask?
What is the most effective type of disposable mask?
user
I am sorry, I am not sure what you mean by that question. I think it would be more helpful if you described the circumstances that you were hoping the mask would protect you from.
assistant
viral particles
user
Are you worried about a virus spreading and the mask being effective at keeping viruses out of your nose?  Can you tell me about the virus?  What does it look like?  How can I identify it?
assistant
both of those.
user