The lab technician noticed the air was recirculating through the hood, so she shut down the system.

The recirculation of water through the cooling system reduced energy consumption significantly.

Engineers detected frequent recirculations in the building's heating system, which reduced its efficiency.

The air recirculates through the ventilation system to maintain a steady temperature.

After the meeting, she recirculated the revised agenda to ensure everyone was up to date.

It's important to recirculate the water in the cooling system to conserve resources.

The laboratory purchased a recirculator to reduce energy consumption while maintaining ventilation.

To reduce energy costs, the facility upgraded its old recirculators to more efficient models.