What is the advantage of having a heated humidifier for my CPAP machine?
A heated humidifier can provide a much higher level of humidification because water that is at a higher temperature evaporates much more readily. This allows the air flowing across the surface of the water to pick up the moisture more easily, resulting in more moisture being delivered to you through your interface. Additionally, warmer air has more capacity to hold moisture, although you should not notice any air temperature difference because humidified air usually feels cooler.
