As an emergency medical professional, you rely on a number of sophisticated tools to treat your patients. From cardiac monitors that defibrillate and cardiovert to drugs that reverse anaphylaxis and pulmonary edema, you are responsible, not only for the benefits, but also the dangers, associated with such therapies. And even the simplest treatment can pose serious harm when not applied properly. A great example is your portable suction machine. Here, we’ll discuss three dangerous mistakes to avoid when applying portable suction in the field.