Casals ParkGuard control cabinet beside a box fan with open intake

Photo: Mariusz Młynarczyk / CloudAir.tech

A white control cabinet with a blue "ParkGuard" screen panel bearing the Casals name stands next to a box fan whose open housing reveals a blue motor. Black-domed roof fans line the plinths behind, and a duct fan and ceiling unit hang from the lighting truss above.