Anemometers - Air velocity instruments

Anemometers, draugt sensors and micromanometers (differential pressure instruments) with pitot static tubes that measures air velocity. The thermoanemometers measure also temperature. Most instruments calculate air flow too. The Swedish Work Environment Authority regulation on workplace design and general recommendations state in section No. 25 for fume cupboards, the front speed shall be at least 0.5m/s at the cupboard opening when work or processes generating air contaminants is in progress. In section No. 28, the ventilation and control system of fume cupboards shall be checked at least once a year to ensure they function as intended.


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