The Philips Respironics system one 60 series can be used with a heated tube which prevents condensation. The tubing is a 15mm diameter and has a heated connection on one end that connects to the machine and a cuff on the other end that attaches to the interface. This connection is a universal size and will attach to all CPAP interfaces.
The model 60 series heated tube is distinguishable from the DreamStation as it has a black heated connection point as opposed to the white for the DreamStation. The tubes are able to be used on both machines.