I know this thread has been dead for a while but I guess this would be "good info" for everyone to know.
During testing of these "Madbull Mines" the powder in my opinion doesn't have an effect great enough to activate peoples allergies.
Firstly, when you step right over top of the mine, your shoe pretty much covers the vent holes, therefore the powder is shot back into the unit and "some" comes out from around the edges (you would probably cover an inch or 2 radius with powder).
Secondly if you were to "skim" the mine (not directly placing your foot over it) the powder doesn't shoot really high either (at the top of your boots at most).
So I really don't know if this is going to have any affect on peoples allergies....unless they were crawling around or face planted themselves in one.......
Like Mysteryfish said, I'm sure people would intense allergies would have that taken care of before they head "outdoors" when nature would have the best of them.
Please note we tested these mines in our exclusive indoor course. So no wind, dirt, nothing was accounted for. We set off the mines in concrete and even then the "powder" remains didn't cover much area. Nevermind outdoors when the wind could easily blow the powder away or the powder would just get hidden/mixed deeper in the dirt.
For more information about these mines, feel free to e-mail me
info@xtreme-tactics.com
Gunman/Zeta
www.xtreme-tactics.com
www.xtreme-tactics.com/store