When a university hospital in Switzerland faced a sudden ventilation failure, it was not just a crisis—it became a turning point. Instead of simply replacing the broken belt-driven fan, the hospital ...

Fans are often used to ventilate agricultural buildings. Adjoining rooms with connecting air paths through open doors or manure channels can operate as a single room with a common negative pressure.

Contrary to popular belief, fan speed settings aren’t always correct from the factory. It’s been a long-standing assumption that you should use the high-speed tap for cooling and low-speed tap for ...