For patients in need of a substantial amount of moisture during treatment, the Polaris EX heated humidifier is the perfect solution. Attaches easily to the front of the Polaris EX CPAP. Temperature adjustment from 70° to 145° (5° increments). W ater chamber is dishwasher safe. One year limited warranty. U.S. federal law restricts this device for sale by or on the order of a physician or licensed practitioner. Order must be accompanied by a prescription.