HCPCS Code A7046: Water Chamber for Humidifier, Used with Positive Airway Pressure Device, Replacement (Each)

It usually takes up to 10 minutes.

Besides healthcare professionals, it can be done by caregivers or the patient themselves as long as they know how to do it.

Nothing that hurts the patient, that's for sure. If it isn't properly installed, there will be inadequate humidification. It's also possible that the chamber might leak or spill, which can cause PAP device malfunction.