The humidifier elbow seal should be replaced if it becomes torn or if moisture is present around the humidifier elbow. If you're experiencing issues with your CPAP therapy pressure or humidification levels and can't find an issue with your CPAP system, it may be worth your time to inspect any silicone seals on your CPAP equipment.
Please Note: This is NOT the Inlet Seal or Dry Box Seal for Philips Respironics System One machines. Please verify that this is the required part for your Respironics humidifier. The PR System One Heated Humidifier Elbow Seal is the silicone humidifier seal inside the top of your Respironics CPAP humidifier where the CPAP hose connects to the top of the lid assembly.
To install the replacement seal:
This is a single seal for the humidifier hose elbow only and DOES NOT include a humidifier or any other parts.