Looking after your LEV
Once a system has been specified and provided then there is ongoing maintenance and checks that need to be monitored to ensure the LEV system stays effective in controlling the hazardous materials.
When an LEV system is provided or installed it will be often be balanced and then commissioned. Balancing the system ensures the airflow is even and steady across the LEV system. This can be simply setting the right speed on the extraction unit or fan to setting blast gate and control dampers in the ducting. The commissioning will test the system and prove it works to the designed specifications and legal benchmarks.
Once the system is balanced and commission responsibility for its continuing maintenance is passed to the system owner. The system owner legally has to continue to check the system periodically to ensure it is working within the original design parameters. These checks will need to be recorded in a system logbook and annually the system will need to be Thoroughly Examined and Tested by a qualified inspector.
It is important to know what to check and how the system should perform to ensure it is still effective.