Rotary ventilators are widely used in large fleets of commercial vans. They’re generally specified for three reasons:
The first is to extract fumes or stale air from vans for driver and passenger comfort, health, and safety. This applies especially to vans carrying gas cylinders, inflammable liquids, chemicals, or other potentially harmful volatile substances.
Another is to minimize condensation within vehicles. Cooled air inside a vehicle mixed with warmer, humid external air or vice versa can result in severe condensation, poor visibility, mold growth, and musty smells. Vehicles are especially prone to condensation:
At the start of a workdayWhen making frequent stops
That are frequently stationary
That store wet equipment inside
Adequate ventilation significantly reduces the damage to equipment and goods inside the vehicle and the deterioration of the vehicle’s interior through water build-up and mold growth.