• Reliable infection control with exclusively expiratory measurements • One-way valve prevents accidental inspiration • Ideal for peak flow monitoring for both in-patients and out-patients • Adapter for spirometer and peak flow meters by other manufacturers available • Inexpensive alternative to a bacteria virus filter for simple forced expiratory volume tests • Customization possible depending on quantity The use of Vitalograph mouthpieces ensures that it can be used safely by a number of patients (for example, in a hospital or in a medical practice), without the risk of cross-infection.
