AirSpiral Heated Breathing Tube for AIRVO 2. This AirSpiral Tube uses a two spiral design to protect against condensate, producing 93% less condensate than previous AIRVO tubes. Includes a molded clip that attaches to clothes or bedding and an integrated temperature sensor so no external probes, cables or adaptors are required. The tube is smaller and lighter than existing AIRVO tubes. 10/box.