Review Article
From Mouth-to-Mouth to Bag-Valve-Mask Ventilation: Evolution and Characteristics of Actual Devices—A Review of the Literature
Table 1
Technical characteristics of Ambu and Laerdal valves.
| | | Ambu | Laerdal |
| | Use | | | | Disassembly | Yes | Yes | | Sterilizable | Yes | Yes | | Single use | Yes | Yes | | Mechanism | | | | Orthostatic | No | No | | Manual occlusion | No | No | | Rebreathing principle | No | No | | Insufflation resistance | Yes | No | | Spring mechanism | No | No | | Operate to gas pressure | Yes | Yes | | Monitoring | | | | Pressure relief valve | No (on the bag) | No (on the bag) | | Direct communication risk (incoming gas/lung) | Yes | Yes | | PEEP valve | Yes (adaptable) | Yes (adaptable) | | Spirometry | No | Yes (adaptable) | | Type | | | | Adult | Yes | Yes | | Pediatric | Yes | Yes |
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