Whisper Swivel II Exhalation Port Micro-Replacement Size and color options: Blue

Size and color options: Blue for AirFit N20

1 Replacement Headgear in Preferred Size

Filter cartridges last up to 60 days

which features the foam cushion insert and silicone seal in a comfortable and secure under–the–chin design

Whisper Swivel II Exhalation Port Micro-Replacement Size and color options: BlueThe Whisper Swivel II is an external exhalation valve with a reusable design that allows for proper ventilation of exhaled waste gas in older models of Respironics masks. While modern masks typically have exhalation ports built into the mask's design, this required component ensured that previous Philips Respironics masks had a continuous leak path in the breathing circuit to get rid of exhaled air. The Whisper Swivel II device is compatible with the