I haven't filled a prescription for an inhaler since I was in high school (maybe even middle school). I've mostly grown out of my asthma and don't have full on attacks anymore. But I do get a tightness in my chest and difficulty breathing when I run and my doctor said I should use an inhaler before I go running. This fancy pants inhaler has a counter on the back for the number of sprays left and a little connector bit to keep the cap attached to the inhaler so you don't lose it. Nifty. Now for a run!