A unique Aerodynamic Flow System (AFS) has been designed to provide the same accuracy and repeatability of data as that given by the standard Mini-Wright. Readings from both meters are now compatible, allowing patients to move from one meter to the other whilst retaining valuable data.

The clear, easy to read scale measuring from 30 to 400 liters per minute, together with the light, smaller diameter body, makes the Mini-Wright AFS Low Range ideal for use by children and the elderly. The Mini-Wright Standard and AFS Low Range are both calibrated by hand, to ensure that readings from any two meters are comparable. This enables a patient to use a Mini-Wright at home and use a different Mini-Wright at the Clinic, yet still rely on the readings obtained

Mini-Wright peak flow meters also have a built-in one-way valve - an individual is prevented from inhaling through the device. This reduces the risk from others who have previously used the meter. It also facilitates the use of inexpensive cardboard tubes as disposable mouthpieces. Mini-Wrights are constructed from medical grade materials - they can be cleaned easily by agitation in mild detergent, rinsing, and allowing to dry completely. The normal life for a Mini-Wright peak flow meter is three years.