airmate I too have used an Airmate for over 15 years. This has a heavy Lexan face plate attached to a hard hat. The curved face plate would tend to deflect any object flying directly at it. I would advise not eating large quantities of baked beans 2 to 3 hours prior to using the airmate because the filtered air intake is on a belt which is worn just above your butt. Do the math it is not pleasant!