This package includes two seals. The Dry Box Seal connects directly to the PR System One humidifier chamber. The Inlet Seal attaches between the humidifier and the CPAP or BiPAP machine. Both seals must be in place at all times when using a humidifier with the PR System One Sleep Therapy device.
Designed for use with all Philips Respironics System One Series CPAP and BiPAP Humidifiers. The seals help to ensure a water tight seal between the humidifier and the sleep therapy device.
USAGE: For optimal performance these seals should be replaced every 3-6 months or whenever they appear damaged, cracked, or worn. If not replaced regularly users may begin to experience leaks between the heated humidifier and the CPAP machine as the seals deteriorate.