p100 all the way. They don't last as long, look freakish and are hard to breathe through. BUT! If you are around a TON of people for 20 minutes it works perfect

p100 all the way. They don't last as long, look freakish and are hard to breathe through. BUT! If you are around a TON of people for 20 minutes it works perfect. We have family that do surgeries p100 all the way.