ResMed HumidX - PlusHumidX Plus takes portable humidification to a whole new level. Exclusive to ResMed AirMini, HumidX Plus is a small heat and moisture exchanger that is designed to provide comfortable and effective humidification for dry and high altitude environments where humidity levels are low. E. g., aircraft How HumidX Plus works: When patients exhale, heat and moisture is captured and stored within HumidX Pluss tiny paper ridges. When they inhale, this heat and