We just got ours today <img src="i/expressions/face-icon-small-smile.gif" border="0"> for my daughter. She is 3, but she was also just diagnosed. From my understanding, you have to fail at CPT to get one if they are under 2 years old. Also, i think the chest has to measure at least 16 inches. Maybe measure her chest and if she is big enough as your CF doctor. All they have to do it tell the insurance that you can't do CPT adequately (like your daughter won't cooperate...)