Which feature is not typical of a Bag-Valve-Mask (BVM)?

The characteristic of a Bag-Valve-Mask (BVM) that stands out as atypical is its disposable design only. BVMs can be manufactured from varying materials, allowing for both disposable and reusable options. The design may cater to specific settings, where a reusable BVM can be sterilized and used multiple times in hospital environments, while disposable BVMs may be preferred in emergency and pre-hospital scenarios for convenience and hygiene.

In contrast, the non-rebreathing valve is a fundamental feature of BVMs, ensuring that the patient breathes in only the air from the bag and not any exhaled carbon dioxide. The self-refilling bag is designed to allow medical personnel to provide continuous oxygenation without interruption. Additionally, BVMs come with standard fittings that facilitate connection to oxygen sources, making them compatible and functional in various emergency situations.