Slightly OT but I much prefer the 9211+: the vent[*] makes a difference in comfort when worn over long periods. Or the 9105 / 9105S which sticks out further away from the face, and its elastic design makes it a bit quicker to don / doff at checkpoints.
[*] Yes I'm prioritizing my comfort over safety for others, but that's the American Way (tm), isn't it.