Philips Respironics Whisper Swivel II Exhalation Valves

This valve reduces dead air space and provides a continuous leak path to prevent rebreathing CO2. It features whisper technology to minimize noise, 360° swivel action for comfort, and is optically clear and latex-free.

• The description claims that the valve minimizes noise through whisper technology.
• The description claims that the valve provides a continuous leak path to prevent rebreathing CO2.