Review (4/5): They work pretty well
I used these a lot when I was a kid and I remember them being a lot worse, but they still stink pretty bad. I recommend using them in a small room. that concentrates it much better. I broke 3 in our small break room and about killed my co workers, lol. I broke 1 in a pretty big room and it still ran my friend out of there, it just dissipated more quickly.