Have the teargas ordered for an acquaintance who unfortunately had to use it. Conclusion: easy to handle, very effective ... The attacker is then first KO gone (more precisely, it was probably 2 days in hospital ...). One should pay attention to the wind direction but always when there would collect himself, it's bad. And Please be careful if you have to apply it in an enclosed space. My friend has "tested" it in a room and has gotten a bit of it, he then 20 min. The eyes rinsed (very smart) ... So really use except in emergencies and a bit with brains !!!