 Bronchiolitis is a very common lung infection in babies. There are many drugs used to treat this disease but nobody knows which one, if any, works the best. Two of the most commonly used drugs are albuterol and epinephrine. These are both drugs given during breathing treatments with oxygen and a mask. We are doing this study to see which of these drugs works better or if they are both equally good. The study works as follows: after the consent process the baby gets three treatments. 