CONCHATHERM IV Heated Humidifier (21- volt) Provides heated molecular humidity for infants, pediatrics, and adults. For use with conventional or heated-wire ventilator circuits. Combines microprocessor technology with CONCHA-COLUMN humidification system. "Pause" mode for nebulizer treatments and circuit changes. Digital temperature display to a tenth of a degree. Advanced alarm package includes tracking alarms for high / low proximal airway temperature, probe alarms, and heated - wire disconnects. 115V, 60Hz.