Wright Peak Flow meter, England, 1980
The Wright Peak Flow Meter measured the flow of air when a person breathed out. Used by physicians to test how well a patient’s lungs were working, the meter could also be used to help diagnose and monitor conditions such as asthma. It could also assess the damaging effects to the health of those working in dangerous trades such as mining. Basil Martin Wright (1912-2001), a bioengineer, invented the meter in 1956. Clement Clarke International made the meter and now manufacture digital and miniature versions.
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Glossary: peak flow meter
A device used for measuring the level of alcohol in the blood from the breath of a vehicle driver.
A common condition in which the airways go into spasm and become constricted. It causes wheezing, coughing and difficulty in breathing. It is often a reaction to hypersensitivity, but can also be triggered by exercise or stress.