So how do Pop shields work ? Do you put them over the microphopne or wear them over your mouth ?

My grandaughter's latest young chap is a recording industry engineer
she met at a rock music festival

She says he mentioned to her that Folk Singers need to use Pop shields to prevent us sounding like Pop singers.

Do any mudcatters use them, and how well do they work ?

Naturally I dread the idea that I might sound like a Pop singer.